[USN-7157-2] PHP regression

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-7157-2
December 13, 2024

php7.4 regression
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS

Summary:

USN-7157-1 introduced a regression in PHP.

Software Description:
- php7.4: HTML-embedded scripting language interpreter

Details:

USN-7157-1 fixed vulnerabilities in PHP. The patch for
CVE-2024-8932 caused a regression in php7.4. This
update fixes the problem.

Original advisory details:

 It was discovered that PHP incorrectly handled certain inputs when
 processed with convert.quoted-printable decode filters.
 An attacker could possibly use this issue to expose sensitive
 information or cause a crash. (CVE-2024-11233)

 It was discovered that PHP incorrectly handled certain HTTP requests.
 An attacker could possibly use this issue to performing arbitrary
 HTTP requests originating from the server, thus potentially
 gaining access to resources not normally available to the external
 user. (CVE-2024-11234)

 It was discovered that PHP incorrectly handled certain inputs.
 An attacker could possibly use this issue to cause a crash or
 execute arbitrary code. (CVE-2024-11236, CVE-2024-8932)

 It was discovered that PHP incorrectly handled certain MySQL requests.
 An attacker could possibly use this issue to cause the client to
 disclose the content of its heap containing data from other SQL requests
 and possible other data belonging to different users of the same server.
 (CVE-2024-8929)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
  libapache2-mod-php7.4           7.4.3-4ubuntu2.28
  php7.4                          7.4.3-4ubuntu2.28
  php7.4-cgi                      7.4.3-4ubuntu2.28
  php7.4-cli                      7.4.3-4ubuntu2.28
  php7.4-ldap                     7.4.3-4ubuntu2.28

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-7157-2
  https://ubuntu.com/security/notices/USN-7157-1
  CVE-2024-8932

Package Information:
  https://launchpad.net/ubuntu/+source/php7.4/7.4.3-4ubuntu2.28

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