The escapeshellcmd API function in PHP before 5.2.6 has unknown impact and context-dependent attack vectors related to "incomplete multibyte chars."

From Red Hat Security Advisory 2008:0545 :

Updated php packages that fix several security issues and a bug are now available for Red Hat Enterprise Linux 4.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server.

It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue.
(CVE-2008-2051)

The PHP functions htmlentities() and htmlspecialchars() did not properly recognize partial multi-byte sequences. Certain sequences of bytes could be passed through these functions without being correctly HTML-escaped. Depending on the browser being used, an attacker could use this flaw to conduct cross-site scripting attacks. (CVE-2007-5898)

A PHP script which used the transparent session ID configuration option, or which used the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form with an ACTION attribute referencing a non-local URL, the user's session ID would be included in the form data passed to that URL. (CVE-2007-5899)

It was discovered that the PHP fnmatch() function did not restrict the length of the string argument. An attacker could use this flaw to crash the PHP interpreter where a script used fnmatch() on untrusted input data. (CVE-2007-4782)

It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

As well, these updated packages fix the following bug :

* after 2008-01-01, when using PEAR version 1.3.6 or older, it was not possible to use the PHP Extension and Application Repository (PEAR) to upgrade or install packages. In these updated packages, PEAR has been upgraded to version 1.4.9, which restores support for the current pear.php.net update server. The following changes were made to the PEAR packages included in php-pear: Console_Getopt and Archive_Tar are now included by default, and XML_RPC has been upgraded to version 1.5.0.

All php users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2008-0544 advisory.

    [5.1.6-20.el5_2.1]
    - add security fixes for CVE-2007-5898, CVE-2007-4782, CVE-2007-5899,       CVE-2008-2051, CVE-2008-2107, CVE-2008-2108 (#445923)

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

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

It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue.
(CVE-2008-2051)

PHP functions htmlentities() and htmlspecialchars() did not properly recognize partial multi-byte sequences. Certain sequences of bytes could be passed through these functions without being correctly HTML-escaped. Depending on the browser being used, an attacker could use this flaw to conduct cross-site scripting attacks. (CVE-2007-5898)

A PHP script which used the transparent session ID configuration option, or which used the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form with an ACTION attribute referencing a non-local URL, the user's session ID would be included in the form data passed to that URL. (CVE-2007-5899)

It was discovered that PHP fnmatch() function did not restrict the length of the string argument. An attacker could use this flaw to crash the PHP interpreter where a script used fnmatch() on untrusted input data. (CVE-2007-4782)

It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue.
(CVE-2008-2051)

The PHP functions htmlentities() and htmlspecialchars() did not properly recognize partial multi-byte sequences. Certain sequences of bytes could be passed through these functions without being correctly HTML-escaped. Depending on the browser being used, an attacker could use this flaw to conduct cross-site scripting attacks. (CVE-2007-5898)

A PHP script which used the transparent session ID configuration option, or which used the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form with an ACTION attribute referencing a non-local URL, the user's session ID would be included in the form data passed to that URL. (CVE-2007-5899)

It was discovered that the PHP fnmatch() function did not restrict the length of the string argument. An attacker could use this flaw to crash the PHP interpreter where a script used fnmatch() on untrusted input data. (CVE-2007-4782)

It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

As well, these updated packages fix the following bug :

  - after 2008-01-01, when using PEAR version 1.3.6 or     older, it was not possible to use the PHP Extension and     Application Repository (PEAR) to upgrade or install     packages. In these updated packages, PEAR has been     upgraded to version 1.4.9, which restores support for     the current pear.php.net update server. The following     changes were made to the PEAR packages included in     php-pear: Console_Getopt and Archive_Tar are now     included by default, and XML_RPC has been upgraded to     version 1.5.0.

Updated php packages that fix several security issues and a bug are now available for Red Hat Enterprise Linux 4.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server.

It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue.
(CVE-2008-2051)

The PHP functions htmlentities() and htmlspecialchars() did not properly recognize partial multi-byte sequences. Certain sequences of bytes could be passed through these functions without being correctly HTML-escaped. Depending on the browser being used, an attacker could use this flaw to conduct cross-site scripting attacks. (CVE-2007-5898)

A PHP script which used the transparent session ID configuration option, or which used the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form with an ACTION attribute referencing a non-local URL, the user's session ID would be included in the form data passed to that URL. (CVE-2007-5899)

It was discovered that the PHP fnmatch() function did not restrict the length of the string argument. An attacker could use this flaw to crash the PHP interpreter where a script used fnmatch() on untrusted input data. (CVE-2007-4782)

It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

As well, these updated packages fix the following bug :

* after 2008-01-01, when using PEAR version 1.3.6 or older, it was not possible to use the PHP Extension and Application Repository (PEAR) to upgrade or install packages. In these updated packages, PEAR has been upgraded to version 1.4.9, which restores support for the current pear.php.net update server. The following changes were made to the PEAR packages included in php-pear: Console_Getopt and Archive_Tar are now included by default, and XML_RPC has been upgraded to version 1.5.0.

All php users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

This update of php5 fixes :

  - possible stack-based buffer overflow CVE-2008-2050

  - incomplete escapeshellcmd() CVE-2008-2051

  - printf() integer overflow CVE-2008-1384

  - insecure GENERATE_SEED macro CVE-2008-2107

  - timezone update for DST in Pakistan

A number of vulnerabilities have been found and corrected in PHP :

The htmlentities() and htmlspecialchars() functions in PHP prior to 5.2.5 accepted partial multibyte sequences, which has unknown impact and attack vectors (CVE-2007-5898).

The output_add_rewrite_var() function in PHP prior to 5.2.5 rewrites local forms in which the ACTION attribute references a non-local URL, which could allow a remote attacker to obtain potentially sensitive information by reading the requests for this URL (CVE-2007-5899).

php-cgi in PHP prior to 5.2.6 does not properly calculate the length of PATH_TRANSLATED, which has unknown impact and attack vectors (CVE-2008-0599).

The escapeshellcmd() API function in PHP prior to 5.2.6 has unknown impact and context-dependent attack vectors related to incomplete multibyte characters (CVE-2008-2051).

Weaknesses in the GENERATE_SEED macro in PHP prior to 4.4.8 and 5.2.5 were discovered that could produce a zero seed in rare circumstances on 32bit systems and generations a portion of zero bits during conversion due to insufficient precision on 64bit systems (CVE-2008-2107, CVE-2008-2108).

The IMAP module in PHP uses obsolete API calls that allow context-dependent attackers to cause a denial of service (crash) via a long IMAP request (CVE-2008-2829).

In addition, this update also corrects an issue with some float to string conversions.

The updated packages have been patched to correct these issues.

A number of vulnerabilities have been found and corrected in PHP :

PHP 5.2.1 would allow context-dependent attackers to read portions of heap memory by executing certain scripts with a serialized data input string beginning with 'S:', which did not properly track the number of input bytes being processed (CVE-2007-1649).

A vulnerability in the chunk_split() function in PHP prior to 5.2.4 has unknown impact and attack vectors, related to an incorrect size calculation (CVE-2007-4660).

The htmlentities() and htmlspecialchars() functions in PHP prior to 5.2.5 accepted partial multibyte sequences, which has unknown impact and attack vectors (CVE-2007-5898).

The output_add_rewrite_var() function in PHP prior to 5.2.5 rewrites local forms in which the ACTION attribute references a non-local URL, which could allow a remote attacker to obtain potentially sensitive information by reading the requests for this URL (CVE-2007-5899).

The escapeshellcmd() API function in PHP prior to 5.2.6 has unknown impact and context-dependent attack vectors related to incomplete multibyte characters (CVE-2008-2051).

Weaknesses in the GENERATE_SEED macro in PHP prior to 4.4.8 and 5.2.5 were discovered that could produce a zero seed in rare circumstances on 32bit systems and generations a portion of zero bits during conversion due to insufficient precision on 64bit systems (CVE-2008-2107, CVE-2008-2108).

The IMAP module in PHP uses obsolete API calls that allow context-dependent attackers to cause a denial of service (crash) via a long IMAP request (CVE-2008-2829).

The updated packages have been patched to correct these issues.

A number of vulnerabilities have been found and corrected in PHP :

php-cgi in PHP prior to 5.2.6 does not properly calculate the length of PATH_TRANSLATED, which has unknown impact and attack vectors (CVE-2008-0599).

The escapeshellcmd() API function in PHP prior to 5.2.6 has unknown impact and context-dependent attack vectors related to incomplete multibyte characters (CVE-2008-2051).

Weaknesses in the GENERATE_SEED macro in PHP prior to 4.4.8 and 5.2.5 were discovered that could produce a zero seed in rare circumstances on 32bit systems and generations a portion of zero bits during conversion due to insufficient precision on 64bit systems (CVE-2008-2107, CVE-2008-2108).

The IMAP module in PHP uses obsolete API calls that allow context-dependent attackers to cause a denial of service (crash) via a long IMAP request (CVE-2008-2829).

In addition, the updated packages provide a number of bug fixes.

The updated packages have been patched to correct these issues.

The remote host is affected by the vulnerability described in GLSA-200811-05 (PHP: Multiple vulnerabilities)

    Several vulnerabilitites were found in PHP:
    PHP ships a     vulnerable version of the PCRE library which allows for the     circumvention of security restrictions or even for remote code     execution in case of an application which accepts user-supplied regular     expressions (CVE-2008-0674).
    Multiple crash issues in several     PHP functions have been discovered.
    Ryan Permeh reported that     the init_request_info() function in sapi/cgi/cgi_main.c does not     properly consider operator precedence when calculating the length of     PATH_TRANSLATED (CVE-2008-0599).
    An off-by-one error in the     metaphone() function may lead to memory corruption.
    Maksymilian Arciemowicz of SecurityReason Research reported an     integer overflow, which is triggerable using printf() and related     functions (CVE-2008-1384).
    Andrei Nigmatulin reported a     stack-based buffer overflow in the FastCGI SAPI, which has unknown     attack vectors (CVE-2008-2050).
    Stefan Esser reported that PHP     does not correctly handle multibyte characters inside the     escapeshellcmd() function, which is used to sanitize user input before     its usage in shell commands (CVE-2008-2051).
    Stefan Esser     reported that a short-coming in PHP's algorithm of seeding the random     number generator might allow for predictible random numbers     (CVE-2008-2107, CVE-2008-2108).
    The IMAP extension in PHP uses     obsolete c-client API calls making it vulnerable to buffer overflows as     no bounds checking can be done (CVE-2008-2829).
    Tavis Ormandy     reported a heap-based buffer overflow in pcre_compile.c in the PCRE     version shipped by PHP when processing user-supplied regular     expressions (CVE-2008-2371).
    CzechSec reported that specially     crafted font files can lead to an overflow in the imageloadfont()     function in ext/gd/gd.c, which is part of the GD extension     (CVE-2008-3658).
    Maksymilian Arciemowicz of SecurityReason     Research reported that a design error in PHP's stream wrappers allows     to circumvent safe_mode checks in several filesystem-related PHP     functions (CVE-2008-2665, CVE-2008-2666).
    Laurent Gaffie     discovered a buffer overflow in the internal memnstr() function, which     is used by the PHP function explode() (CVE-2008-3659).
    An     error in the FastCGI SAPI when processing a request with multiple dots     preceding the extension (CVE-2008-3660).
  Impact :

    These vulnerabilities might allow a remote attacker to execute     arbitrary code, to cause a Denial of Service, to circumvent security     restrictions, to disclose information, and to manipulate files.
  Workaround :

    There is no known workaround at this time.

According to its banner, the version of PHP 4.x installed on the remote host is older than 4.4.9.  Such versions address several security issues, including : 

  - An update of PCRE to version 7.7.
  - An overflow in memnstr().
  - A crash in imageloadfont when an invalid font is given.
  - An open_basedir handling issue in the curl extension.
  - 'mbstring.func_overload' set in '.htaccess' becomes global.  Note that the release announcement states this will be the last release for the PHP 4.4 series.  

The remote host is running a version of Mac OS X 10.5 or 10.4 that does not have the security update 2008-005 applied. 

This update contains security fixes for a number of programs.

It was discovered that PHP did not properly check the length of the string parameter to the fnmatch function. An attacker could cause a denial of service in the PHP interpreter if a script passed untrusted input to the fnmatch function. (CVE-2007-4782)

Maksymilian Arciemowicz discovered a flaw in the cURL library that allowed safe_mode and open_basedir restrictions to be bypassed. If a PHP application were tricked into processing a bad file:// request, an attacker could read arbitrary files. (CVE-2007-4850)

Rasmus Lerdorf discovered that the htmlentities and htmlspecialchars functions did not correctly stop when handling partial multibyte sequences. A remote attacker could exploit this to read certain areas of memory, possibly gaining access to sensitive information. This issue affects Ubuntu 8.04 LTS, and an updated fix is included for Ubuntu 6.06 LTS, 7.04 and 7.10. (CVE-2007-5898)

It was discovered that the output_add_rewrite_var function would sometimes leak session id information to forms targeting remote URLs.
Malicious remote sites could use this information to gain access to a PHP application user's login credentials. This issue only affects Ubuntu 8.04 LTS. (CVE-2007-5899)

It was discovered that PHP did not properly calculate the length of PATH_TRANSLATED. If a PHP application were tricked into processing a malicious URI, and attacker may be able to execute arbitrary code with application privileges. (CVE-2008-0599)

An integer overflow was discovered in the php_sprintf_appendstring function. Attackers could exploit this to cause a denial of service.
(CVE-2008-1384)

Andrei Nigmatulin discovered stack-based overflows in the FastCGI SAPI of PHP. An attacker may be able to leverage this issue to perform attacks against PHP applications. (CVE-2008-2050)

It was discovered that the escapeshellcmd did not properly process multibyte characters. An attacker may be able to bypass quoting restrictions and possibly execute arbitrary code with application privileges. (CVE-2008-2051)

It was discovered that the GENERATE_SEED macro produced a predictable seed under certain circumstances. Attackers may by able to easily predict the results of the rand and mt_rand functions. (CVE-2008-2107, CVE-2008-2108)

Tavis Ormandy discovered that the PCRE library did not correctly handle certain in-pattern options. An attacker could cause PHP applications using pcre to crash, leading to a denial of service.
USN-624-1 fixed vulnerabilities in the pcre3 library. This update provides the corresponding update for PHP. (CVE-2008-2371)

It was discovered that php_imap used obsolete API calls. If a PHP application were tricked into processing a malicious IMAP request, an attacker could cause a denial of service or possibly execute code with application privileges. (CVE-2008-2829).

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

Updated PHP packages that fix several security issues are now available for Red Hat Enterprise Linux 3 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server.

It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue.
(CVE-2008-2051)

PHP functions htmlentities() and htmlspecialchars() did not properly recognize partial multi-byte sequences. Certain sequences of bytes could be passed through these functions without being correctly HTML-escaped. Depending on the browser being used, an attacker could use this flaw to conduct cross-site scripting attacks. (CVE-2007-5898)

A PHP script which used the transparent session ID configuration option, or which used the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form with an ACTION attribute referencing a non-local URL, the user's session ID would be included in the form data passed to that URL. (CVE-2007-5899)

It was discovered that PHP fnmatch() function did not restrict the length of the string argument. An attacker could use this flaw to crash the PHP interpreter where a script used fnmatch() on untrusted input data. (CVE-2007-4782)

It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

Users of PHP should upgrade to these updated packages, which contain backported patches to correct these issues.

Updated PHP packages that fix several security issues are now available for Red Hat Enterprise Linux 2.1.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server.

It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue.
(CVE-2008-2051)

The PHP functions htmlentities() and htmlspecialchars() did not properly recognize partial multi-byte sequences. Certain sequences of bytes could be passed through these functions without being correctly HTML-escaped. Depending on the browser being used, an attacker could use this flaw to conduct cross-site scripting attacks. (CVE-2007-5898)

A PHP script which used the transparent session ID configuration option, or which used the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form with an ACTION attribute referencing a non-local URL, the user's session ID would be included in the form data passed to that URL. (CVE-2007-5899)

It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

Integer overflow and memory requirements miscalculation issues were discovered in the Perl-Compatible Regular Expression (PCRE) library used by PHP to process regular expressions. These issues could cause a crash, or possibly execute an arbitrary code with the privileges of the PHP script that processes regular expressions from untrusted sources. Note: PHP packages shipped with Red Hat Enterprise Linux 2.1 did not use the system-level PCRE library. By default they used an embedded copy of the library included with the PHP package.
(CVE-2006-7228, CVE-2007-1660)

Users of PHP should upgrade to these updated packages, which contain backported patches to correct these issues.

This release updates PHP to the latest upstream version 5.2.6, fixing multiple bugs and security issues. See upstream release notes for further details: http://www.php.net/releases/5_2_5.php http://www.php.net/releases/5_2_6.php It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue. (CVE-2008-2051) PHP functions htmlentities() and htmlspecialchars() did not properly recognize partial multi-byte sequences. Certain sequences of bytes could be passed through these functions without being correctly HTML-escaped. An attacker could use this flaw to conduct cross-site scripting attack against users of such browsers. (CVE-2007-5898) It was discovered that a PHP script using the transparent session ID configuration option, or using the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form which is posted to a third-party website, the user's session ID would be included in the form data and passed to that website. (CVE-2007-5899) It was discovered that PHP fnmatch() function did not restrict the length of the string argument. An attacker could use this flaw to crash the PHP interpreter where a script used fnmatch() on untrusted input data.
(CVE-2007-4782) It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

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.

This release updates PHP to the latest upstream version 5.2.6, fixing multiple bugs and security issues. See upstream release notes for further details: http://www.php.net/releases/5_2_6.php It was discovered that the PHP escapeshellcmd() function did not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue.
(CVE-2008-2051) It was discovered that a PHP script using the transparent session ID configuration option, or using the output_add_rewrite_var() function, could leak session identifiers to external websites. If a page included an HTML form which is posted to a third-party website, the user's session ID would be included in the form data and passed to that website. (CVE-2007-5899) It was discovered that PHP did not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. (CVE-2008-2107, CVE-2008-2108)

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.

New php packages are available for Slackware 10.2, 11.0, 12.0, 12.1, and -current to fix security issues. Note that PHP5 is not the default PHP for Slackware 10.2 or 11.0 (those use PHP4), so if your PHP code is not ready for PHP5, don't upgrade until it is or you'll (by definition) run into problems.

Several vulnerabilities have been discovered in PHP version 4, a server-side, HTML-embedded scripting language. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2007-3799     The session_start function allows remote attackers to     insert arbitrary attributes into the session cookie via     special characters in a cookie that is obtained from     various parameters.

  - CVE-2007-3806     A denial of service was possible through a malicious     script abusing the glob() function.

  - CVE-2007-3998     Certain maliciously constructed input to the wordwrap()     function could lead to a denial of service attack.

  - CVE-2007-4657     Large len values of the stspn() or strcspn() functions     could allow an attacker to trigger integer overflows to     expose memory or cause denial of service.

  - CVE-2008-2051     The escapeshellcmd API function could be attacked via     incomplete multibyte chars.

Several vulnerabilities have been discovered in PHP, a server-side, HTML-embedded scripting language. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2007-3806     The glob function allows context-dependent attackers to     cause a denial of service and possibly execute arbitrary     code via an invalid value of the flags parameter.

  - CVE-2008-1384     Integer overflow allows context-dependent attackers to     cause a denial of service and possibly have other impact     via a printf format parameter with a large width     specifier.

  - CVE-2008-2050     Stack-based buffer overflow in the FastCGI SAPI.

  - CVE-2008-2051     The escapeshellcmd API function could be attacked via     incomplete multibyte chars.

According to its banner, the version of PHP 5.x installed on the remote host is older than 5.2.6.  Such versions may be affected by the following issues :

  - A stack buffer overflow in FastCGI SAPI.
  - An integer overflow in printf().
  - An unspecified security issue tracked by CVE-2008-0599.
  - A safe_mode bypass in cURL.
  - Incomplete handling of multibyte chars inside escapeshellcmd().
  - Issues in the bundled PCRE fixed by version 7.6.

According to its banner, the version of PHP installed on the remote host is older than 5.2.6.  Such versions may be affected by the following issues :

  - A stack-based buffer overflow in FastCGI SAPI.

  - An integer overflow in printf().

  - An security issue arising from improper calculation     of the length of PATH_TRANSLATED in cgi_main.c.

  - A safe_mode bypass in cURL.

  - Incomplete handling of multibyte chars inside     escapeshellcmd().

  - Issues in the bundled PCRE fixed by version 7.6.

According to its banner, the version of PHP installed on the remote host is older than 4.4.9.  Such versions address several security issues, including : 

  - An update of PCRE to version 7.7.
  - An overflow in memnstr().
  - A crash in imageloadfont when an invalid font is given.
  - An open_basedir handling issue in the curl extension.
  - 'mbstring.func_overload' set in '.htaccess' becomes global.  Note that the release announcement states this will be the last release for the PHP 4.4 series.

The version of PHP installed on the remote host is older than 5.2.6.  Such versions may be affected by the following issues :

  - A stack buffer overflow in FastCGI SAPI.
  - An integer overflow in printf().
  - An unspecified security issue tracked by CVE-2008-0599.
  - A safe_mode bypass in cURL.
  - Incomplete handling of multibyte chars inside escapeshellcmd().
  - Issues in the bundled PCRE fixed by version 7.6.

ID	Name	Product	Family	Severity
67712	Oracle Linux 4 : php (ELSA-2008-0545)	Nessus	Oracle Linux Local Security Checks	critical
67711	Oracle Linux 5 : php (ELSA-2008-0544)	Nessus	Oracle Linux Local Security Checks	critical
60445	Scientific Linux Security Update : php on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	critical
60444	Scientific Linux Security Update : php on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	critical
43693	CentOS 4 : php (CESA-2008:0545)	Nessus	CentOS Local Security Checks	critical
39912	openSUSE Security Update : apache2-mod_php5 (apache2-mod_php5-61)	Nessus	SuSE Local Security Checks	critical
38042	Mandriva Linux Security Advisory : php (MDVSA-2008:127)	Nessus	Mandriva Local Security Checks	critical
37584	Mandriva Linux Security Advisory : php (MDVSA-2008:126)	Nessus	Mandriva Local Security Checks	critical
36486	Mandriva Linux Security Advisory : php (MDVSA-2008:128)	Nessus	Mandriva Local Security Checks	critical
34787	GLSA-200811-05 : PHP: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
4620	PHP 4.x < 4.4.9 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	high
33790	Mac OS X Multiple Vulnerabilities (Security Update 2008-005)	Nessus	MacOS X Local Security Checks	critical
33575	Ubuntu 6.06 LTS / 7.04 / 7.10 / 8.04 LTS : php5 vulnerabilities (USN-628-1)	Nessus	Ubuntu Local Security Checks	critical
33524	CentOS 3 / 5 : php (CESA-2008:0544)	Nessus	CentOS Local Security Checks	critical
33512	RHEL 2.1 : php (RHSA-2008:0546)	Nessus	Red Hat Local Security Checks	critical
33511	RHEL 4 : php (RHSA-2008:0545)	Nessus	Red Hat Local Security Checks	critical
33510	RHEL 3 / 5 : php (RHSA-2008:0544)	Nessus	Red Hat Local Security Checks	critical
33381	openSUSE 10 Security Update : apache2-mod_php5 (apache2-mod_php5-5379)	Nessus	SuSE Local Security Checks	critical
33232	Fedora 8 : php-5.2.6-2.fc8 (2008-3864)	Nessus	Fedora Local Security Checks	critical
33231	Fedora 9 : php-5.2.6-2.fc9 (2008-3606)	Nessus	Fedora Local Security Checks	critical
32444	Slackware 10.2 / 11.0 / 12.0 / 12.1 / current : php (SSA:2008-128-01)	Nessus	Slackware Local Security Checks	critical
32379	Debian DSA-1578-1 : php4 - several vulnerabilities	Nessus	Debian Local Security Checks	critical
32306	Debian DSA-1572-1 : php5 - several vulnerabilities	Nessus	Debian Local Security Checks	critical
4493	PHP 5.x < 5.2.6 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	high
32123	PHP < 5.2.6 Multiple Vulnerabilities	Nessus	CGI abuses	high
801083	PHP < 4.4.9 Multiple Vulnerabilities	Log Correlation Engine	Web Servers	high
801068	PHP < 5.2.6 Multiple Vulnerabilities	Log Correlation Engine	Web Servers	high

Detections

Analytics

CVE-2008-2051

critical

Tenable Plugins

critical

critical

critical

critical

critical

critical

critical

critical

critical

critical

high

critical

critical

critical

critical

critical

critical

critical

critical

critical

critical

critical

critical

high

high

high

high