A vulnerability was found in PHP where setting the environment variable PHP_CLI_SERVER_WORKERS to a large value leads to a heap buffer overflow.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3920 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3920-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                       Guilhem Moulin     October 14, 2024                              https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : php7.4     Version        : 7.4.33-1+deb11u6     CVE ID         : CVE-2022-4900 CVE-2024-5458 CVE-2024-8925 CVE-2024-8927                      CVE-2024-9026     Debian Bug     : 1072885

    Multiple security issues were found in PHP, a widely-used open source     general purpose scripting language, which could result in execution of     arbitrary code, erroneous parsing of invalid URLs or multipart form     data, configuration setting bypass, or log pollution.

    CVE-2022-4900

        It was discovered that setting the environment variable         PHP_CLI_SERVER_WORKERS to a large value leads to a heap buffer         overflow.

    CVE-2024-5458

        Due to a code logic error, filtering functions such as filter_var         when validating URLs (FILTER_VALIDATE_URL) for certain types of URLs         the function results in invalid user information (username +         password part of URLs) being treated as valid user information.
        This may lead to the downstream code accepting invalid URLs as valid         and parsing them incorrectly.

        This causes the same problems as CVE-2020-7071, but with IPv6 host         parts.

    CVE-2024-8925

        Mihail Kirov discovered an erroneous parsing of multipart form data         contained in an HTTP POST request, which could lead to legitimate         data not being processed thereby violating data integrity.

    CVE-2024-8927

        It was discovered that the `cgi.force_redirect` configuration         setting is bypassable due to environment variable collision.

    CVE-2024-9026

        In PHP-FPM, when configured to catch workers output through         catch_workers_output = yes configuration, it may be possible to         pollute the final log with up to 4 characters from the         FPM_STDIO_CMD_FLUSH macro, or remove up to 4 characters from the         logs.

    For Debian 11 bullseye, these problems have been fixed in version     7.4.33-1+deb11u6.

    We recommend that you upgrade your php7.4 packages.

    For the detailed security status of php7.4 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/php7.4

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

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

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

The remote Redhat Enterprise Linux 8 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.

  - oniguruma: integer overflow in search_in_range function in regexec.c leads to out-of-bounds read     (CVE-2019-19012)

  - php: phar Buffer mismanagement (CVE-2023-3824)

  - main/streams/xp_socket.c in PHP 7.x before 2017-03-07 misparses fsockopen calls, such as by interpreting     fsockopen('127.0.0.1:80', 443) as if the address/port were 127.0.0.1:80:443, which is later truncated to     127.0.0.1:80. This behavior has a security risk if the explicitly provided port number (i.e., 443 in this     example) is hardcoded into an application as a security policy, but the hostname argument (i.e.,     127.0.0.1:80 in this example) is obtained from untrusted input. (CVE-2017-7189)

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 9 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched.

  - php: potential buffer overflow in php_cli_server_startup_workers (CVE-2022-4900)

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

This plugin has been deprecated as it does not adhere to established standards for this style of check.

The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6757-2 advisory.

    USN-6757-1 fixed vulnerabilities in PHP. Unfortunately these fixes were incomplete for Ubuntu 20.04 LTS,     Ubuntu 22.04 LTS, and Ubuntu 23.10. This update fixes the problem.



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.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6757-1 advisory.

    It was discovered that PHP incorrectly handled PHP_CLI_SERVER_WORKERS variable. An attacker could possibly     use this issue to cause a crash or execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, and     Ubuntu 22.04 LTS. (CVE-2022-4900)

    It was discovered that PHP incorrectly handled certain cookies. An attacker could possibly use this issue     to cookie by pass. (CVE-2024-2756)

    It was discovered that PHP incorrectly handled some passwords. An attacker could possibly use this issue     to cause an account takeover attack. (CVE-2024-3096)

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.

The version of php installed on the remote host is prior to 8.0.24-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2PHP8.0-2024-010 advisory.

    2024-02-15: CVE-2022-31629 was added to this advisory.

    2024-02-15: CVE-2022-31628 was added to this advisory.

    In PHP versions before 7.4.31, 8.0.24 and 8.1.11, the phar uncompressor code would recursively uncompress     quines gzip files, resulting in an infinite loop. (CVE-2022-31628)

    In PHP versions before 7.4.31, 8.0.24 and 8.1.11, the vulnerability enables network and same-site     attackers to set a standard insecure cookie in the victim's browser which is treated as a  or  cookie by     PHP applications. (CVE-2022-31629)

    There is a potential buffer overflow in the PHP built-in web server - setting the environment variable     PHP_CLI_SERVER_WORKERS to a large value can lead to a heap buffer overflow. (CVE-2022-4900)

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

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:1847-1 advisory.

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:1846-1 advisory.

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

The remote openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2023:1583-1 advisory.

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:0848 advisory.

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

    The following packages have been upgraded to a later upstream version: php (8.0). (BZ#2161666)

    Security Fix(es):

    * XKCP: buffer overflow in the SHA-3 reference implementation (CVE-2022-37454)

    * php: standard insecure cookie could be treated as a `__Host-` or `__Secure-` cookie by PHP applications     (CVE-2022-31629)

    * php: OOB read due to insufficient input validation in imageloadfont() (CVE-2022-31630)

    * php: Due to an integer overflow PDO::quote() may return unquoted string (CVE-2022-31631)

    * php: phar wrapper can occur dos when using quine gzip file (CVE-2022-31628)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

ID	Name	Product	Family	Severity
208984	Debian dla-3920 : libapache2-mod-php7.4 - security update	Nessus	Debian Local Security Checks	high
202269	RHEL 8 : php (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
198457	RHEL 9 : php (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	medium
196189	RHEL 7 : php (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	critical
196157	RHEL 6 : php (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	critical
194949	Ubuntu 20.04 LTS / 22.04 LTS / 23.10 : PHP vulnerabilities (USN-6757-2)	Nessus	Ubuntu Local Security Checks	medium
194504	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : PHP vulnerabilities (USN-6757-1)	Nessus	Ubuntu Local Security Checks	medium
190054	Amazon Linux 2 : php (ALASPHP8.0-2024-010)	Nessus	Amazon Linux Local Security Checks	medium
174379	SUSE SLES12 Security Update : php7 (SUSE-SU-2023:1847-1)	Nessus	SuSE Local Security Checks	medium
174378	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : php7 (SUSE-SU-2023:1846-1)	Nessus	SuSE Local Security Checks	medium
173446	openSUSE 15 Security Update : php7 (SUSE-SU-2023:1583-1)	Nessus	SuSE Local Security Checks	medium
171724	RHEL 8 : php:8.0 (RHSA-2023:0848)	Nessus	Red Hat Local Security Checks	critical

Detections

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CVE-2022-4900

medium

Tenable Plugins

high

critical

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critical

medium

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critical