Stack-based buffer overflow in the phar_fix_filepath function in ext/phar/phar.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large length value, as demonstrated by mishandling of an e-mail attachment by the imap PHP extension.

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - php: buffer overflow in handling of long link names in tar phar archives (CVE-2016-2554)

  - php: Uninitialized read in exif_process_IFD_in_TIFF (CVE-2019-9641)

  - The ip2long function in PHP 5.1.4 and earlier may incorrectly validate an arbitrary string and return a     valid network IP address, which allows remote attackers to obtain network information and facilitate other     attacks, as demonstrated using SQL injection in the X-FORWARDED-FOR Header in index.php in MiniBB 2.0.
    NOTE: it could be argued that the ip2long behavior represents a risk for security-relevant issues in a way     that is similar to strcpy's role in buffer overflows, in which case this would be a class of     implementation bugs that would require separate CVE items for each PHP application that uses ip2long in a     security-relevant manner. (CVE-2006-4023)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - php: buffer overflow in handling of long link names in tar phar archives (CVE-2016-2554)

  - php: Heap-based buffer over-read in mbstring regular expression functions (CVE-2019-9023)

  - Session fixation vulnerability in the Sessions subsystem in PHP before 5.5.2 allows remote attackers to     hijack web sessions by specifying a session ID. (CVE-2011-4718)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - php: buffer overflow in handling of long link names in tar phar archives (CVE-2016-2554)

  - php: Uninitialized read in exif_process_IFD_in_TIFF (CVE-2019-9641)

  - The ip2long function in PHP 5.1.4 and earlier may incorrectly validate an arbitrary string and return a     valid network IP address, which allows remote attackers to obtain network information and facilitate other     attacks, as demonstrated using SQL injection in the X-FORWARDED-FOR Header in index.php in MiniBB 2.0.
    NOTE: it could be argued that the ip2long behavior represents a risk for security-relevant issues in a way     that is similar to strcpy's role in buffer overflows, in which case this would be a class of     implementation bugs that would require separate CVE items for each PHP application that uses ip2long in a     security-relevant manner. (CVE-2006-4023)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and     7.3.x below 7.3.6 it is possible to supply it with data     what will cause it to read past the allocated buffer.
    This may lead to information disclosure or     crash.(CVE-2019-11040)

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and     7.3.x below 7.3.8 it is possible to supply it with data     what will cause it to read past the allocated buffer.
    This may lead to information disclosure or     crash.(CVE-2019-11042)

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and     7.3.x below 7.3.8 it is possible to supply it with data     what will cause it to read past the allocated buffer.
    This may lead to information disclosure or     crash.(CVE-2019-11041)

  - The openssl_random_pseudo_bytes function in     ext/openssl/openssl.c in PHP before 5.4.44, 5.5.x     before 5.5.28, and 5.6.x before 5.6.12 incorrectly     relies on the deprecated RAND_pseudo_bytes function,     which makes it easier for remote attackers to defeat     cryptographic protection mechanisms via unspecified     vectors.(CVE-2015-8867)

  - A flaw was found in the way the way PHP's Phar     extension parsed Phar archives. A specially crafted     archive could cause PHP to crash or, possibly, execute     arbitrary code when opened.(CVE-2015-5590)

  - Use-after-free vulnerability in the wddx_stack_destroy     function in ext/wddx/wddx.c in PHP before 5.6.26 and     7.x before 7.0.11 allows remote attackers to cause a     denial of service or possibly have unspecified other     impact via a wddxPacket XML document that lacks an     end-tag for a recordset field element, leading to     mishandling in a wddx_deserialize call.(CVE-2016-7413)

  - The file_check_mem function in funcs.c in file before     5.23, as used in the Fileinfo component in PHP before     5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5,     mishandles continuation-level jumps, which allows     context-dependent attackers to cause a denial of     service (buffer overflow and application crash) or     possibly execute arbitrary code via a crafted magic     file.(CVE-2015-8865)

  - The bcpowmod function in ext/bcmath/bcmath.c in PHP     before 5.5.35, 5.6.x before 5.6.21, and 7.x before     7.0.6 accepts a negative integer for the scale     argument, which allows remote attackers to cause a     denial of service or possibly have unspecified other     impact via a crafted call.(CVE-2016-4537)

  - The bcpowmod function in ext/bcmath/bcmath.c in PHP     before 5.5.35, 5.6.x before 5.6.21, and 7.x before     7.0.6 modifies certain data structures without     considering whether they are copies of the _zero_,
    _one_, or _two_ global variable, which allows remote     attackers to cause a denial of service or possibly have     unspecified other impact via a crafted     call.(CVE-2016-4538)

  - Integer overflow in the fread function in     ext/standard/file.c in PHP before 5.5.36 and 5.6.x     before 5.6.22 allows remote attackers to cause a denial     of service or possibly have unspecified other impact     via a large integer in the second     argument.(CVE-2016-5096)

  - An out-of-bounds write flaw was found in the     fpm_log_write() logging function of PHP's FastCGI     Process Manager service. A remote attacker could     repeatedly send maliciously crafted requests to force     FPM to exhaust file system space, creating a denial of     service and preventing further logging.(CVE-2016-5114)

  - spl_array.c in the SPL extension in PHP before 5.5.37     and 5.6.x before 5.6.23 improperly interacts with the     unserialize implementation and garbage collection,     which allows remote attackers to execute arbitrary code     or cause a denial of service (use-after-free and     application crash) via crafted serialized     data.(CVE-2016-5771)

  - php_zip.c in the zip extension in PHP before 5.5.37,     5.6.x before 5.6.23, and 7.x before 7.0.8 improperly     interacts with the unserialize implementation and     garbage collection, which allows remote attackers to     execute arbitrary code or cause a denial of service     (use-after-free and application crash) via crafted     serialized data containing a ZipArchive     object.(CVE-2016-5773)

  - Integer overflow in the virtual_file_ex function in     TSRM/tsrm_virtual_cwd.c in PHP before 5.5.38, 5.6.x     before 5.6.24, and 7.x before 7.0.9 allows remote     attackers to cause a denial of service (stack-based     buffer overflow) or possibly have unspecified other     impact via a crafted extract operation on a ZIP     archive.(CVE-2016-6289)

  - When processing certain files, PHP EXIF extension in     versions 7.1.x below 7.1.28, 7.2.x below 7.2.17 and     7.3.x below 7.3.4 can be caused to read past allocated     buffer in exif_process_IFD_TAG function. This may lead     to information disclosure or crash.(CVE-2019-11034)

  - When processing certain files, PHP EXIF extension in     versions 7.1.x below 7.1.28, 7.2.x below 7.2.17 and     7.3.x below 7.3.4 can be caused to read past allocated     buffer in exif_iif_add_value function. This may lead to     information disclosure or crash.(CVE-2019-11035)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the php packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in the way the way PHP's Phar     extension parsed Phar archives. A specially crafted     archive could cause PHP to crash or, possibly, execute     arbitrary code when opened.(CVE-2015-5590)

  - Integer overflow in the virtual_file_ex function in     TSRM/tsrm_virtual_cwd.c in PHP before 5.5.38, 5.6.x     before 5.6.24, and 7.x before 7.0.9 allows remote     attackers to cause a denial of service (stack-based     buffer overflow) or possibly have unspecified other     impact via a crafted extract operation on a ZIP     archive.(CVE-2016-6289)

  - php_zip.c in the zip extension in PHP before 5.5.37,     5.6.x before 5.6.23, and 7.x before 7.0.8 improperly     interacts with the unserialize implementation and     garbage collection, which allows remote attackers to     execute arbitrary code or cause a denial of service     (use-after-free and application crash) via crafted     serialized data containing a ZipArchive     object.(CVE-2016-5773)

  - spl_array.c in the SPL extension in PHP before 5.5.37     and 5.6.x before 5.6.23 improperly interacts with the     unserialize implementation and garbage collection,     which allows remote attackers to execute arbitrary code     or cause a denial of service (use-after-free and     application crash) via crafted serialized     data.(CVE-2016-5771)

  - An out-of-bounds write flaw was found in the     fpm_log_write() logging function of PHP's FastCGI     Process Manager service. A remote attacker could     repeatedly send maliciously crafted requests to force     FPM to exhaust file system space, creating a denial of     service and preventing further logging.(CVE-2016-5114)

  - Integer overflow in the fread function in     ext/standard/file.c in PHP before 5.5.36 and 5.6.x     before 5.6.22 allows remote attackers to cause a denial     of service or possibly have unspecified other impact     via a large integer in the second     argument.(CVE-2016-5096)

  - The bcpowmod function in ext/bcmath/bcmath.c in PHP     before 5.5.35, 5.6.x before 5.6.21, and 7.x before     7.0.6 modifies certain data structures without     considering whether they are copies of the _zero_,
    _one_, or _two_ global variable, which allows remote     attackers to cause a denial of service or possibly have     unspecified other impact via a crafted     call.(CVE-2016-4538)

  - The bcpowmod function in ext/bcmath/bcmath.c in PHP     before 5.5.35, 5.6.x before 5.6.21, and 7.x before     7.0.6 accepts a negative integer for the scale     argument, which allows remote attackers to cause a     denial of service or possibly have unspecified other     impact via a crafted call.(CVE-2016-4537)

  - The file_check_mem function in funcs.c in file before     5.23, as used in the Fileinfo component in PHP before     5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5,     mishandles continuation-level jumps, which allows     context-dependent attackers to cause a denial of     service (buffer overflow and application crash) or     possibly execute arbitrary code via a crafted magic     file.(CVE-2015-8865)

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and     7.3.x below 7.3.6 it is possible to supply it with data     what will cause it to read past the allocated buffer.
    This may lead to information disclosure or     crash.(CVE-2019-11040)

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and     7.3.x below 7.3.8 it is possible to supply it with data     what will cause it to read past the allocated buffer.
    This may lead to information disclosure or     crash.(CVE-2019-11042)

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and     7.3.x below 7.3.8 it is possible to supply it with data     what will cause it to read past the allocated buffer.
    This may lead to information disclosure or     crash.(CVE-2019-11041)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An out-of-bounds write flaw was found in the     fpm_log_write() logging function of PHP's FastCGI     Process Manager service. A remote attacker could     repeatedly send maliciously crafted requests to force     FPM to exhaust file system space, creating a denial of     service and preventing further logging.(CVE-2016-5114)

  - spl_array.c in the SPL extension in PHP before 5.5.37     and 5.6.x before 5.6.23 improperly interacts with the     unserialize implementation and garbage collection,     which allows remote attackers to execute arbitrary code     or cause a denial of service (use-after-free and     application crash) via crafted serialized     data.(CVE-2016-5771)

  - php_zip.c in the zip extension in PHP before 5.5.37,     5.6.x before 5.6.23, and 7.x before 7.0.8 improperly     interacts with the unserialize implementation and     garbage collection, which allows remote attackers to     execute arbitrary code or cause a denial of service     (use-after-free and application crash) via crafted     serialized data containing a ZipArchive     object.(CVE-2016-5773)

  - Integer overflow in the fread function in     ext/standard/file.c in PHP before 5.5.36 and 5.6.x     before 5.6.22 allows remote attackers to cause a denial     of service or possibly have unspecified other impact     via a large integer in the second     argument.(CVE-2016-5096)

  - The bcpowmod function in ext/bcmath/bcmath.c in PHP     before 5.5.35, 5.6.x before 5.6.21, and 7.x before     7.0.6 accepts a negative integer for the scale     argument, which allows remote attackers to cause a     denial of service or possibly have unspecified other     impact via a crafted call.(CVE-2016-4537)

  - The bcpowmod function in ext/bcmath/bcmath.c in PHP     before 5.5.35, 5.6.x before 5.6.21, and 7.x before     7.0.6 modifies certain data structures without     considering whether they are copies of the _zero_,
    _one_, or _two_ global variable, which allows remote     attackers to cause a denial of service or possibly have     unspecified other impact via a crafted     call.(CVE-2016-4538)

  - The file_check_mem function in funcs.c in file before     5.23, as used in the Fileinfo component in PHP before     5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5,     mishandles continuation-level jumps, which allows     context-dependent attackers to cause a denial of     service (buffer overflow and application crash) or     possibly execute arbitrary code via a crafted magic     file.(CVE-2015-8865)

  - A flaw was found in the way the way PHP's Phar     extension parsed Phar archives. A specially crafted     archive could cause PHP to crash or, possibly, execute     arbitrary code when opened.(CVE-2015-5590)

  - Use-after-free vulnerability in the wddx_stack_destroy     function in ext/wddx/wddx.c in PHP before 5.6.26 and     7.x before 7.0.11 allows remote attackers to cause a     denial of service or possibly have unspecified other     impact via a wddxPacket XML document that lacks an     end-tag for a recordset field element, leading to     mishandling in a wddx_deserialize call.(CVE-2016-7413)

  - Integer overflow in the phar_parse_pharfile function in     ext/phar/phar.c in PHP before 5.6.30 and 7.0.x before     7.0.15 allows remote attackers to cause a denial of     service (memory consumption or application crash) via a     truncated manifest entry in a PHAR     archive.(CVE-2016-10159)

  - It was found that the exif_convert_any_to_int()     function in PHP was vulnerable to floating point     exceptions when parsing tags in image files. A remote     attacker with the ability to upload a malicious image     could crash PHP, causing a Denial of     Service.(CVE-2016-10158)

  - ext/libxml/libxml.c in PHP before 5.5.22 and 5.6.x     before 5.6.6, when PHP-FPM is used, does not isolate     each thread from libxml_disable_entity_loader changes     in other threads, which allows remote attackers to     conduct XML External Entity (XXE) and XML Entity     Expansion (XEE) attacks via a crafted XML document, a     related issue to CVE-2015-5161.(CVE-2015-8866)

  - Use-after-free vulnerability in the spl_ptr_heap_insert     function in ext/spl/spl_heap.c in PHP before 5.5.27 and     5.6.x before 5.6.11 allows remote attackers to execute     arbitrary code by triggering a failed     SplMinHeap::compare operation.(CVE-2015-4116)

  - Integer overflow in the virtual_file_ex function in     TSRM/tsrm_virtual_cwd.c in PHP before 5.5.38, 5.6.x     before 5.6.24, and 7.x before 7.0.9 allows remote     attackers to cause a denial of service (stack-based     buffer overflow) or possibly have unspecified other     impact via a crafted extract operation on a ZIP     archive.(CVE-2016-6289)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The file_check_mem function in funcs.c in file before     5.23, as used in the Fileinfo component in PHP before     5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5,     mishandles continuation-level jumps, which allows     context-dependent attackers to cause a denial of     service (buffer overflow and application crash) or     possibly execute arbitrary code via a crafted magic     file.(CVE-2015-8865)

  - The bcpowmod function in ext/bcmath/bcmath.c in PHP     before 5.5.35, 5.6.x before 5.6.21, and 7.x before     7.0.6 accepts a negative integer for the scale     argument, which allows remote attackers to cause a     denial of service or possibly have unspecified other     impact via a crafted call.(CVE-2016-4537)

  - The bcpowmod function in ext/bcmath/bcmath.c in PHP     before 5.5.35, 5.6.x before 5.6.21, and 7.x before     7.0.6 modifies certain data structures without     considering whether they are copies of the _zero_,
    _one_, or _two_ global variable, which allows remote     attackers to cause a denial of service or possibly have     unspecified other impact via a crafted     call.(CVE-2016-4538)

  - Integer overflow in the fread function in     ext/standard/file.c in PHP before 5.5.36 and 5.6.x     before 5.6.22 allows remote attackers to cause a denial     of service or possibly have unspecified other impact     via a large integer in the second     argument.(CVE-2016-5096)

  - An out-of-bounds write flaw was found in the     fpm_log_write() logging function of PHP's FastCGI     Process Manager service. A remote attacker could     repeatedly send maliciously crafted requests to force     FPM to exhaust file system space, creating a denial of     service and preventing further logging.(CVE-2016-5114)

  - spl_array.c in the SPL extension in PHP before 5.5.37     and 5.6.x before 5.6.23 improperly interacts with the     unserialize implementation and garbage collection,     which allows remote attackers to execute arbitrary code     or cause a denial of service (use-after-free and     application crash) via crafted serialized     data.(CVE-2016-5771)

  - php_zip.c in the zip extension in PHP before 5.5.37,     5.6.x before 5.6.23, and 7.x before 7.0.8 improperly     interacts with the unserialize implementation and     garbage collection, which allows remote attackers to     execute arbitrary code or cause a denial of service     (use-after-free and application crash) via crafted     serialized data containing a ZipArchive     object.(CVE-2016-5773)

  - Integer overflow in the virtual_file_ex function in     TSRM/tsrm_virtual_cwd.c in PHP before 5.5.38, 5.6.x     before 5.6.24, and 7.x before 7.0.9 allows remote     attackers to cause a denial of service (stack-based     buffer overflow) or possibly have unspecified other     impact via a crafted extract operation on a ZIP     archive.(CVE-2016-6289)

  - A flaw was found in the way the way PHP's Phar     extension parsed Phar archives. A specially crafted     archive could cause PHP to crash or, possibly, execute     arbitrary code when opened.(CVE-2015-5590)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to its banner, the version of PHP 5.6.x running on the remote web server is prior to 5.6.11. It is, therefore, affected by multiple vulnerabilities :

 - A security feature bypass vulnerability, known as 'BACKRONYM', exists due to a failure to properly enforce the requirement of an SSL/TLS connection when the --ssl client option is used. A man-in-the-middle attacker can exploit this flaw to coerce the client to downgrade to an unencrypted connection, allowing the attacker to disclose data from the database or manipulate database queries. (CVE-2015-3152)

 - A flaw exists in the PHP Connector/C component due to a failure to properly enforce the requirement of an SSL/TLS connection when the --ssl client option is used. A man-in-the-middle attacker can exploit this to downgrade the connection to plain HTTP when HTTPS is expected. (CVE-2015-8838) - A use-after-free error exists in the spl_recursive_it_move_forward_ex() function. An attacker can exploit this to dereference already freed memory, potentially allowing the execution of arbitrary code.

 - A use-after-free error exists in the sqlite3SafetyCheckSickOrOk() function. An attacker can exploit this to dereference already freed memory, potentially allowing the execution of arbitrary code.

 - The '!' character is not treated as a special character when delayed variable substitution is enabled. The functions escapeshellcmd() and escapeshellarg() are unable to properly sanitize arguments containing '!'. An attacker can exploit this to execute arbitrary commands.

 - A double-free flaw exists in zend_vm_execute.h due to improper handling of certain code. An attacker can exploit this flaw to crash a PHP application, resulting in a denial of service condition.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

PHP was updated to fix two security issues.

The following vulnerabilities were fixed :

  - CVE-2015-5589: PHP could be crashed when processing an     invalid file with the 'phar' extension with a segfault     in Phar::convertToData, leading to Denial of Service     (DOS) (bsc#938721)

  - CVE-2015-5590: PHP could be crashed or have unspecified     other impact due to a buffer overlow in     phar_fix_filepath (bsc#938719)

This update ships the php5-opcache package (FATE#319034 bsc#940807) and the php5-posix package. (FATE#319094 bsc#940821)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Versions of PHP 5.5.x earlier than 5.5.27, or 5.6.x earlier than 5.6.11 are vulnerable to the following issues :

 A double-free flaw exists in zend_vm_execute.h due to improper handling of certain code. An attacker can exploit this flaw to crash a PHP application, resulting in a denial of service condition.
 - A flaw exists in the parse_ini_file() and parse_ini_string() functions. Due to improper handling of strings that contain a line feed followed by an escape character, an attacker can exploit this to crash a PHP application, resulting in a denial of service condition.

According to its banner, the version of PHP 5.6.x running on the remote web server is prior to 5.6.11. It is, therefore, affected by multiple vulnerabilities.
 - A security feature bypass vulnerability, known as 'BACKRONYM', exists due to a failure to properly enforce the requirement of an SSL/TLS connection when the --ssl client option is used. A man-in-the-middle attacker can exploit this flaw to coerce the client to downgrade to an unencrypted connection, allowing the attacker to disclose data from the database or manipulate database queries. (CVE-2015-3152)
 - A flaw in the phar_convert_to_other function in ext/phar/phar_object.c could allow a remote attacker to cause a denial of service. (CVE-2015-5589)
 - A Stack-based buffer overflow in the phar_fix_filepath function in ext/phar/phar.c could allow a remote attacker to cause a denial of service. (CVE-2015-5590)
 - A flaw exists in the PHP Connector/C component due to a failure to properly enforce the requirement of an SSL/TLS connection when the --ssl client option is used.
 - A man-in-the-middle attacker can exploit this to downgrade the connection to plain HTTP when HTTPS is expected. (CVE-2015-8838)
 - A use-after-free error exists in the spl_recursive_it_move_forward_ex() function. An attacker can exploit this to dereference already freed memory, potentially allowing the execution of arbitrary code.
 - A use-after-free error exists in the sqlite3SafetyCheckSickOrOk() function. An attacker can exploit this to dereference already freed memory, potentially allowing the execution of arbitrary code.
 - The '!' character is not treated as a special character when delayed variable substitution is enabled. The functions escapeshellcmd() and escapeshellarg() are unable to properly sanitize arguments containing '!'.
 - An attacker can exploit this to execute arbitrary commands.
 - A double-free flaw exists in zend_vm_execute.h due to improper handling of certain code. An attacker can exploit this flaw to crash a PHP application, resulting in a denial of service condition.

Versions of PHP 5.4.x earlier than 5.4.43, 5.5.x earlier than 5.5.27, or 5.6.x earlier than 5.6.11 are subject to the following issues :

  - A flaw exists in the phar_convert_to_other() function in 'ext/phar/phar_object.c' that is triggered during the conversion of invalid TAR files. This may allow a remote attacker to crash an application utilizing PHP. (CVE-2015-5589)
  - The '!' character is not treated as a special character when delayed variable substitution is enabled. The functions escapeshellcmd() and escapeshellarg() are unable to properly sanitize arguments containing '!'. An attacker can exploit this to execute arbitrary commands.
 - A flaw exists in the phar_fix_filepath() function, allowing a buffer overflow that could causes a crash or execution of arbitrary code.

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2758-1 advisory.

    It was discovered that the PHP phar extension incorrectly handled certain files. A remote attacker could     use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2015-5589)

    It was discovered that the PHP phar extension incorrectly handled certain filepaths. A remote attacker     could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute     arbitrary code. (CVE-2015-5590)

    Taoguang Chen discovered that PHP incorrectly handled unserializing objects. A remote attacker could use     this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code.
    (CVE-2015-6831, CVE-2015-6834, CVE-2015-6835

    Sean Heelan discovered that PHP incorrectly handled unserializing objects. A remote attacker could use     this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code.
    (CVE-2015-6832)

    It was discovered that the PHP phar extension incorrectly handled certain archives. A remote attacker     could use this issue to cause files to be placed outside of the destination directory. (CVE-2015-6833)

    Andrea Palazzo discovered that the PHP Soap client incorrectly validated data types. A remote attacker     could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute     arbitrary code. (CVE-2015-6836)

    It was discovered that the PHP XSLTProcessor class incorrectly handled certain data. A remote attacker     could use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2015-6837)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

- CVE-2015-3307 The phar_parse_metadata function in     ext/phar/phar.c in PHP before 5.4.40, 5.5.x before     5.5.24, and 5.6.x before 5.6.8 allows remote attackers     to cause a denial of service (heap metadata corruption)     or possibly have unspecified other impact via a crafted     tar archive.

  - CVE-2015-3411 + CVE-2015-3412 Fixed bug #69353 (Missing     null byte checks for paths in various PHP extensions)

  - CVE-2015-4021 The phar_parse_tarfile function in     ext/phar/tar.c in PHP before 5.4.41, 5.5.x before     5.5.25, and 5.6.x before 5.6.9 does not verify that the     first character of a filename is different from the \0     character, which allows remote attackers to cause a     denial of service (integer underflow and memory     corruption) via a crafted entry in a tar archive.

  - CVE-2015-4022 Integer overflow in the ftp_genlist     function in ext/ftp/ftp.c in PHP before 5.4.41, 5.5.x     before 5.5.25, and 5.6.x before 5.6.9 allows remote FTP     servers to execute arbitrary code via a long reply to a     LIST command, leading to a heap-based buffer overflow.

  - CVE-2015-4025 PHP before 5.4.41, 5.5.x before 5.5.25,     and 5.6.x before 5.6.9 truncates a pathname upon     encountering a \x00 character in certain situations,     which allows remote attackers to bypass intended     extension restrictions and access files or directories     with unexpected names via a crafted argument to (1)     set_include_path, (2) tempnam, (3) rmdir, or (4)     readlink. NOTE: this vulnerability exists because of an     incomplete fix for CVE-2006-7243.

  - CVE-2015-4026 The pcntl_exec implementation in PHP     before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before     5.6.9 truncates a pathname upon encountering a \x00     character, which might allow remote attackers to bypass     intended extension restrictions and execute files with     unexpected names via a crafted first argument. NOTE:
    this vulnerability exists because of an incomplete fix     for CVE-2006-7243.

  - CVE-2015-4147 The SoapClient::__call method in     ext/soap/soap.c in PHP before 5.4.39, 5.5.x before     5.5.23, and 5.6.x before 5.6.7 does not verify that
    __default_headers is an array, which allows remote     attackers to execute arbitrary code by providing crafted     serialized data with an unexpected data type, related to     a 'type confusion' issue.

  - CVE-2015-4148 The do_soap_call function in     ext/soap/soap.c in PHP before 5.4.39, 5.5.x before     5.5.23, and 5.6.x before 5.6.7 does not verify that the     uri property is a string, which allows remote attackers     to obtain sensitive information by providing crafted     serialized data with an int data type, related to a     'type confusion' issue.

  - CVE-2015-4598 Incorrect handling of paths with NULs

  - CVE-2015-4599 Type confusion vulnerability in     exception::getTraceAsString

  - CVE-2015-4600 + CVE-2015-4601 Added type checks

  - CVE-2015-4602 Type Confusion Infoleak Vulnerability in     unserialize() with SoapFault

  - CVE-2015-4604 + CVE-2015-4605 denial of service when     processing a crafted file with Fileinfo (already fixed     in CVE-2015-temp-68819.patch)

  - CVE-2015-4643 Improved fix for bug #69545 (Integer     overflow in ftp_genlist() resulting in heap overflow)

  - CVE-2015-4644 Fixed bug #69667 (segfault in     php_pgsql_meta_data)

  - CVE-2015-5589 Segfault in Phar::convertToData on invalid     file

  - CVE-2015-5590 Buffer overflow and stack smashing error     in phar_fix_filepath

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

PHP was updated to fix two security issues.

The following vulnerabilities were fixed :

  - CVE-2015-5589: PHP could be crashed when processing an     invalid file with the 'phar' extension with a segfault     in Phar::convertToData, leading to Denial of Service     (DOS) (bsc#938721)

  - CVE-2015-5590: PHP could be crashed or have unspecified     other impact due to a buffer overlow in     phar_fix_filepath (bsc#938719)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Multiple vulnerabilities have been discovered in the PHP language :

  - CVE-2015-4598     thoger at redhat dot com discovered that paths     containing a NUL character were improperly handled, thus     allowing an attacker to manipulate unexpected files on     the server.

  - CVE-2015-4643     Max Spelsberg discovered an integer overflow flaw     leading to a heap-based buffer overflow in PHP's FTP     extension, when parsing listings in FTP server     responses. This could lead to a a crash or execution of     arbitrary code.

  - CVE-2015-4644     A denial of service through a crash could be caused by a     segfault in the php_pgsql_meta_data function.

  - CVE-2015-5589     kwrnel at hotmail dot com discovered that PHP could     crash when processing an invalid phar file, thus leading     to a denial of service.

  - CVE-2015-5590     jared at enhancesoft dot com discovered a buffer     overflow in the phar_fix_filepath function, that could     causes a crash or execution of arbitrary code.

  - Additionally, several other vulnerabilites were fixed :

    sean dot heelan at gmail dot com discovered a problem in     the unserialization of some items, that could lead to     arbitrary code execution.

  stewie at mail dot ru discovered that the phar extension improperly   handled zip archives with relative paths, which would allow an   attacker to overwrite files outside of the destination directory.

  taoguangchen at icloud dot com discovered several use-after-free   vulnerabilities that could lead to arbitrary code execution.

PHP process crashes when processing an invalid file with the 'phar' extension. (CVE-2015-5589)

As discussed upstream, mysqlnd is vulnerable to the attack described in https://www.duosecurity.com/blog/backronym-mysql-vulnerability.
(CVE-2015-3152)

PHP versions before 5.5.27 and 5.4.43 contain buffer overflow issue.
(CVE-2015-5590)

A flaw was discovered in the way PHP performed object unserialization.
Specially crafted input processed by the unserialize() function could cause a PHP application to crash or, possibly, execute arbitrary code.
(CVE-2015-6831 , CVE-2015-6832)

A flaw was found in the way the way PHP's Phar extension parsed Phar archives. A specially crafted archive could cause PHP to crash or, possibly, execute arbitrary code when opened. (CVE-2015-6833)

PHP was updated to fix two security issues.

The following vulnerabilities were fixed :

  - CVE-2015-5589: PHP could be crashed when processing an     invalid file with the 'phar' extension with a segfault     in Phar::convertToData, leading to Denial of Service     (DOS) (boo#938721)

  - CVE-2015-5590: PHP could be crashed or have unspecified     other impact due to a buffer overlow in     phar_fix_filepath (boo#938719)

10 Jul 2015, **PHP 5.6.11**

**Core:**

  - Fixed bug #69768 (escapeshell*() doesn't cater to !).
    (cmb)

    - Fixed bug #69703 (Use __builtin_clzl on PowerPC). (dja       at axtens dot net, Kalle)

    - Fixed bug #69732 (can induce segmentation fault with       basic php code). (Dmitry)

    - Fixed bug #69642 (Windows 10 reported as Windows 8).
      (Christian Wenz, Anatol Belski)

    - Fixed bug #69551 (parse_ini_file() and       parse_ini_string() segmentation fault). (Christoph M.
      Becker)

    - Fixed bug #69781 (phpinfo() reports Professional       Editions of Windows 7/8/8.1/10 as 'Business').
      (Christian Wenz)

    - Fixed bug #69740 (finally in generator (yield)       swallows exception in iteration). (Nikita)

    - Fixed bug #69835 (phpinfo() does not report many       Windows SKUs). (Christian Wenz)

    - Fixed bug #69892 (Different arrays compare indentical       due to integer key truncation). (Nikita)

    - Fixed bug #69874 (Can't set empty additional_headers       for mail()), regression from fix to bug #68776.
      (Yasuo)

**GD:**

  - Fixed bug #61221 (imagegammacorrect function loses alpha     channel). (cmb)

**GMP:**

  - Fixed bug #69803 (gmp_random_range() modifies second     parameter if GMP number). (Nikita)

**PCRE:**

  - Fixed Bug #53823 (preg_replace: * qualifier on unicode     replace garbles the string). (cmb)

    - Fixed bug #69864 (Segfault in preg_replace_callback)       (cmb, ab)

**PDO_pgsql:**

  - Fixed bug #69752 (PDOStatement::execute() leaks memory     with DML Statements when closeCuror() is u). (Philip     Hofstetter)

    - Fixed bug #69362 (PDO-pgsql fails to connect if       password contains a leading single quote). (Matteo)

    - Fixed bug #69344 (PDO PgSQL Incorrect binding numeric       array with gaps). (Matteo)

**SimpleXML:**

  - Refactored the fix for bug #66084     (simplexml_load_string() mangles empty node name).
    (Christoph Michael Becker)

**SPL:**

  - Fixed bug #69737 (Segfault when SplMinHeap::compare     produces fatal error). (Stas)

    - Fixed bug #67805 (SplFileObject setMaxLineLength).
      (Willian Gustavo Veiga).

    - Fixed bug #69970 (Use-after-free vulnerability in       spl_recursive_it_move_forward_ex()). (Laruence)

**Sqlite3:**

  - Fixed bug #69972 (Use-after-free vulnerability in     sqlite3SafetyCheckSickOrOk()). (Laruence)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

reports :

Segfault in Phar::convertToData on invalid file.

Buffer overflow and stack smashing error in phar_fix_filepath.

According to its banner, the version of PHP 5.6.x running on the remote web server is prior to 5.6.11. It is, therefore, affected by multiple vulnerabilities :

  - A security feature bypass vulnerability, known as     'BACKRONYM', exists due to a failure to properly enforce     the requirement of an SSL/TLS connection when the --ssl     client option is used. A man-in-the-middle attacker can     exploit this flaw to coerce the client to downgrade to     an unencrypted connection, allowing the attacker to     disclose data from the database or manipulate database     queries. (CVE-2015-3152)

  - A flaw in the phar_convert_to_other function in     ext/phar/phar_object.c could allow a remote attacker     to cause a denial of service. (CVE-2015-5589)

  - A Stack-based buffer overflow in the phar_fix_filepath     function in ext/phar/phar.c could allow a remote attacker     to cause a denial of service. (CVE-2015-5590)

  - A flaw exists in the PHP Connector/C component due to a     failure to properly enforce the requirement of an     SSL/TLS connection when the --ssl client option is used.
    A man-in-the-middle attacker can exploit this to     downgrade the connection to plain HTTP when HTTPS is     expected. (CVE-2015-8838)     
  - A use-after-free error exists in the     spl_recursive_it_move_forward_ex() function. An attacker     can exploit this to dereference already freed memory,     potentially allowing the execution of arbitrary code.

  - A use-after-free error exists in the     sqlite3SafetyCheckSickOrOk() function. An attacker can     exploit this to dereference already freed memory,     potentially allowing the execution of arbitrary code.

  - The '!' character is not treated as a special character     when delayed variable substitution is enabled. The     functions escapeshellcmd() and escapeshellarg() are     unable to properly sanitize arguments containing '!'.
    An attacker can exploit this to execute arbitrary     commands.

  - A double-free flaw exists in zend_vm_execute.h due to     improper handling of certain code. An attacker can     exploit this flaw to crash a PHP application, resulting     in a denial of service condition.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its banner, the version of PHP 5.5.x running on the remote web server is prior to 5.5.27. It is, therefore, affected by multiple vulnerabilities :

  - A security feature bypass vulnerability, known as     'BACKRONYM', exists due to a failure to properly enforce     the requirement of an SSL/TLS connection when the --ssl     client option is used. A man-in-the-middle attacker can     exploit this flaw to coerce the client to downgrade to     an unencrypted connection, allowing the attacker to     disclose data from the database or manipulate database     queries. (CVE-2015-3152)

  - A flaw in the phar_convert_to_other function in     ext/phar/phar_object.c could allow a remote attacker     to cause a denial of service. (CVE-2015-5589)

  - A Stack-based buffer overflow in the phar_fix_filepath     function in ext/phar/phar.c could allow a remote attacker     to cause a denial of service. (CVE-2015-5590)

  - A flaw exists in the PHP Connector/C component due to a     failure to properly enforce the requirement of an     SSL/TLS connection when the --ssl client option is used.
    A man-in-the-middle attacker can exploit this to     downgrade the connection to plain HTTP when HTTPS is     expected. (CVE-2015-8838)

  - An unspecified flaw exists in the     phar_convert_to_other() function in phar_object.c during     the conversion of invalid TAR files. An attacker can     exploit this flaw to crash a PHP application, resulting     in a denial of service condition.

  - The '!' character is not treated as a special character     when delayed variable substitution is enabled. The     functions escapeshellcmd() and escapeshellarg() are     unable to properly sanitize arguments containing '!'.
    An attacker can exploit this to execute arbitrary     commands.

  - A double-free flaw exists in zend_vm_execute.h due to     improper handling of certain code. An attacker can     exploit this flaw to crash a PHP application, resulting     in a denial of service condition.

  - A flaw exists in the parse_ini_file() and     parse_ini_string() functions due to improper handling of     strings that contain a line feed followed by an escape     character. An attacker can exploit this to crash a PHP     application, resulting in a denial of service condition.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its banner, the version of PHP 5.4.x running on the remote web server is prior to 5.4.43. It is, therefore, affected by multiple vulnerabilities :

  - A security feature bypass vulnerability, known as     'BACKRONYM', exists due to a failure to properly enforce     the requirement of an SSL/TLS connection when the --ssl     client option is used. A man-in-the-middle attacker can     exploit this flaw to coerce the client to downgrade to     an unencrypted connection, allowing the attacker to     disclose data from the database or manipulate database     queries. (CVE-2015-3152)

  - A flaw in the phar_convert_to_other function in     ext/phar/phar_object.c could allow a remote attacker     to cause a denial of service. (CVE-2015-5589)

  - A Stack-based buffer overflow in the phar_fix_filepath     function in ext/phar/phar.c could allow a remote attacker     to cause a denial of service. (CVE-2015-5590)

  - A flaw exists in the PHP Connector/C component due to a     failure to properly enforce the requirement of an     SSL/TLS connection when the --ssl client option is used.
    A man-in-the-middle attacker can exploit this to     downgrade the connection to plain HTTP when HTTPS is     expected. (CVE-2015-8838)     
  - An unspecified flaw exists in the     phar_convert_to_other() function in phar_object.c during     the conversion of invalid TAR files. An attacker can     exploit this flaw to crash a PHP application, resulting     in a denial of service condition.

  - A flaw exists in the parse_ini_file() and     parse_ini_string() functions due to improper handling of     strings that contain a line feed followed by an escape     character. An attacker can exploit this to crash a PHP     application, resulting in a denial of service condition.

  - A user-after-free error exists in the object_custom()     function in var_unserializer.c due to improper     validation of user-supplied input. A remote attacker can     exploit this to dereference already freed memory,     potentially resulting in the execution of arbitrary     code.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
198558	RHEL 6 : php (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
198511	RHEL 7 : php (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
198485	RHEL 5 : php (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
129236	EulerOS 2.0 SP3 : php (EulerOS-SA-2019-2043)	Nessus	Huawei Local Security Checks	critical
128931	EulerOS Virtualization for ARM 64 3.0.2.0 : php (EulerOS-SA-2019-1928)	Nessus	Huawei Local Security Checks	critical
128917	EulerOS 2.0 SP2 : php (EulerOS-SA-2019-1865)	Nessus	Huawei Local Security Checks	critical
128087	EulerOS 2.0 SP5 : php (EulerOS-SA-2019-1795)	Nessus	Huawei Local Security Checks	critical
98803	PHP 5.6.x < 5.6.11 Multiple Vulnerabilities (BACKRONYM)	Web App Scanning	Component Vulnerability	critical
119970	SUSE SLES12 Security Update : php5 (SUSE-SU-2015:1425-1)	Nessus	SuSE Local Security Checks	critical
93161	SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1638-1) (BACKRONYM)	Nessus	SuSE Local Security Checks	critical
8955	PHP 5.5.x < 5.5.27 / 5.6.x < 5.6.11 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	high
8954	PHP 5.6.10 < 5.6.11 Multiple Vulnerabilities (BACKRONYM)	Nessus Network Monitor	Web Servers	high
8953	PHP 5.4.x < 5.4.43 / 5.5.x < 5.5.27 / 5.6.x < 5.6.11 Multiple Vulnerabilities (BACKRONYM)	Nessus Network Monitor	Web Servers	critical
86221	Ubuntu 14.04 LTS : PHP vulnerabilities (USN-2758-1)	Nessus	Ubuntu Local Security Checks	critical
85808	Debian DLA-307-1 : php5 security update	Nessus	Debian Local Security Checks	critical
85723	SUSE SLES11 Security Update : php53 (SUSE-SU-2015:1466-1)	Nessus	SuSE Local Security Checks	critical
85664	Debian DSA-3344-1 : php5 - security update	Nessus	Debian Local Security Checks	critical
85458	Amazon Linux AMI : php56 (ALAS-2015-585) (BACKRONYM)	Nessus	Amazon Linux Local Security Checks	critical
85457	Amazon Linux AMI : php55 (ALAS-2015-584) (BACKRONYM)	Nessus	Amazon Linux Local Security Checks	critical
85456	Amazon Linux AMI : php54 (ALAS-2015-583) (BACKRONYM)	Nessus	Amazon Linux Local Security Checks	critical
85259	openSUSE Security Update : php5 (openSUSE-2015-536)	Nessus	SuSE Local Security Checks	critical
85061	Fedora 21 : php-5.6.11-1.fc21 (2015-11581)	Nessus	Fedora Local Security Checks	critical
84862	FreeBSD : php-phar -- multiple vulnerabilities (8b1f53f3-2da5-11e5-86ff-14dae9d210b8)	Nessus	FreeBSD Local Security Checks	critical
84673	PHP 5.6.x < 5.6.11 Multiple Vulnerabilities (BACKRONYM)	Nessus	CGI abuses	critical
84672	PHP 5.5.x < 5.5.27 Multiple Vulnerabilities (BACKRONYM)	Nessus	CGI abuses	critical
84671	PHP 5.4.x < 5.4.43 Multiple Vulnerabilities (BACKRONYM)	Nessus	CGI abuses	critical

Detections

Analytics

CVE-2015-5590

high

Tenable Plugins

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