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Ubuntu 23.10 Security Advisory USN-6757-2: Critical PHP Issues

ubuntu
Calendar Grey May 2, 2024
Dist Ubuntu Esm H88
Critical PHP security issues resolved for Ubuntu 20.04, 22.04 LTS, and 23.10. Essential updates provided for user safety.
Several security issues were fixed in PHP.

Summary

Several security issues were fixed in PHP.

Software Description:

- php8.2: server-side, HTML-embedded scripting language (metapackage)

- php8.1: HTML-embedded scripting language interpreter

- php7.4: HTML-embedded scripting language interpreter

Details:

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.

Original advisory 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

atta...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory code execution php critical update vulnerability software fix ubuntu

Update Instructions

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

Ubuntu 23.10
  libapache2-mod-php8.2           8.2.10-2ubuntu2.1
  php8.2                          8.2.10-2ubuntu2.1
  php8.2-cgi                      8.2.10-2ubuntu2.1
  php8.2-cli                      8.2.10-2ubuntu2.1
  php8.2-fpm                      8.2.10-2ubuntu2.1
  php8.2-xml                      8.2.10-2ubuntu2.1

Ubuntu 22.04 LTS
  libapache2-mod-php8.1           8.1.2-1ubuntu2.17
  php8.1                          8.1.2-1ubuntu2.17
  php8.1-cgi                      8.1.2-1ubuntu2.17
  php8.1-cli                      8.1.2-1ubuntu2.17
  php8.1-fpm                      8.1.2-1ubuntu2.17
  php8.1-xml                      8.1.2-1ubuntu2.17

Ubuntu 20.04 LTS
  libapache2-mod-php7.4           7.4.3-4ubuntu2.22
  php7.4                          7.4.3-4ubuntu2.22
  php7.4-cgi                      7.4.3-4ubuntu2.22
  php7.4-cli                      7.4.3-4ubuntu2.22
  php7.4-fpm                      7.4.3-4ubuntu2.22
  php7.4-xml                      7.4.3-4ubuntu2.22

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

References

https://ubuntu.com/security/notices/USN-6757-2

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-6757-2

Topics%20covered

Topics Covered

security advisory code execution php critical update vulnerability software fix ubuntu

Package Information

https://launchpad.net/ubuntu/+source/php8.1/8.1.2-1ubuntu2.17
https://launchpad.net/ubuntu/+source/php7.4/7.4.3-4ubuntu2.22

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