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Ubuntu 22.04 LTS USN-6757-1 Critical: PHP Code Execution Risk

ubuntu
Calendar Grey April 29, 2024
Dist Ubuntu Esm H88
Numerous vulnerabilities addressed in PHP for Ubuntu releases from 16.04 to 22.04 LTS. Ensure you update promptly to safeguard your systems.
Several security issues were fixed in PHP.

Summary

Several security issues were fixed in PHP.

Software Description:

- php8.1: HTML-embedded scripting language interpreter

- php7.4: HTML-embedded scripting language interpreter

- php7.2: HTML-embedded scripting language interpreter

- php7.0: HTML-embedded scripting language interpreter

Details:

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)

Topics%20covered

Topics Covered

security advisory critical code execution php arbitrary code ubuntu cookie bypass

Update Instructions

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

Ubuntu 22.04 LTS
  libapache2-mod-php8.1           8.1.2-1ubuntu2.16
  php8.1                          8.1.2-1ubuntu2.16
  php8.1-cgi                      8.1.2-1ubuntu2.16
  php8.1-cli                      8.1.2-1ubuntu2.16
  php8.1-fpm                      8.1.2-1ubuntu2.16
  php8.1-xml                      8.1.2-1ubuntu2.16

Ubuntu 20.04 LTS
  libapache2-mod-php7.4           7.4.3-4ubuntu2.21
  php7.4                          7.4.3-4ubuntu2.21
  php7.4-cgi                      7.4.3-4ubuntu2.21
  php7.4-cli                      7.4.3-4ubuntu2.21
  php7.4-fpm                      7.4.3-4ubuntu2.21
  php7.4-xml                      7.4.3-4ubuntu2.21

Ubuntu 18.04 LTS
  libapache2-mod-php7.2           7.2.24-0ubuntu0.18.04.17+esm3
                                  Available with Ubuntu Pro
  php7.2                          7.2.24-0ubuntu0.18.04.17+esm3
                                  Available with Ubuntu Pro
  php7.2-cgi                      7.2.24-0ubuntu0.18.04.17+esm3
                                  Available with Ubuntu Pro
  php7.2-cli                      7.2.24-0ubuntu0.18.04.17+esm3
                                  Available with Ubuntu Pro
  php7.2-fpm                      7.2.24-0ubuntu0.18.04.17+esm3
                                  Available with Ubuntu Pro
  php7.2-xml                      7.2.24-0ubuntu0.18.04.17+esm3
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  libapache2-mod-php7.0           7.0.33-0ubuntu0.16.04.16+esm9
                                  Available with Ubuntu Pro
  php7.0                          7.0.33-0ubuntu0.16.04.16+esm9
                                  Available with Ubuntu Pro
  php7.0-cgi                      7.0.33-0ubuntu0.16.04.16+esm9
                                  Available with Ubuntu Pro
  php7.0-cli                      7.0.33-0ubuntu0.16.04.16+esm9
                                  Available with Ubuntu Pro
  php7.0-fpm                      7.0.33-0ubuntu0.16.04.16+esm9
                                  Available with Ubuntu Pro
  php7.0-xml                      7.0.33-0ubuntu0.16.04.16+esm9
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-6757-1

CVE-2022-4900, CVE-2024-2756, CVE-2024-3096

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6757-1

Topics%20covered

Topics Covered

security advisory critical code execution php arbitrary code ubuntu cookie bypass

Package Information

https://launchpad.net/ubuntu/+source/php8.1/8.1.2-1ubuntu2.16
https://launchpad.net/ubuntu/+source/php7.4/7.4.3-4ubuntu2.21

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