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Ubuntu Security Notice USN-6305-3

Ubuntu Security Notice 6305-3 - USN-6305-2 fixed a vulnerability in PHP. The update caused a regression in Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. This update fix it. It was discovered that PHP incorrectly handled certain XML files. An attacker could possibly use this issue to expose sensitive information.

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Ubuntu Security Notice USN-6305-3
July 03, 2024

php7.0 and php7.2 regression

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

  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

Summary:

USN-6305-2 caused a regression in parsing XML.

Software Description:

  • php7.2: HTML-embedded scripting language interpreter
  • php7.0: HTML-embedded scripting language interpreter

Details:

USN-6305-2 fixed a vulnerability in PHP. The update caused a regression
in Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. This update fix it.

Original advisory details:

It was discovered that PHP incorrectly handled certain XML files.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2023-3823)

It was discovered that PHP incorrectly handled certain PHAR files.
An attacker could possibly use this issue to cause a crash,
expose sensitive information or execute arbitrary code.
(CVE-2023-3824)

Update instructions:

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

Ubuntu 18.04 LTS
php7.2 7.2.24-0ubuntu0.18.04.17+esm4
Available with Ubuntu Pro
php7.2-cgi 7.2.24-0ubuntu0.18.04.17+esm4
Available with Ubuntu Pro
php7.2-cli 7.2.24-0ubuntu0.18.04.17+esm4
Available with Ubuntu Pro
php7.2-fpm 7.2.24-0ubuntu0.18.04.17+esm4
Available with Ubuntu Pro
php7.2-xml 7.2.24-0ubuntu0.18.04.17+esm4
Available with Ubuntu Pro
php7.2-xmlrpc 7.2.24-0ubuntu0.18.04.17+esm4
Available with Ubuntu Pro

Ubuntu 16.04 LTS
php7.0 7.0.33-0ubuntu0.16.04.16+esm10
Available with Ubuntu Pro
php7.0-cgi 7.0.33-0ubuntu0.16.04.16+esm10
Available with Ubuntu Pro
php7.0-cli 7.0.33-0ubuntu0.16.04.16+esm10
Available with Ubuntu Pro
php7.0-fpm 7.0.33-0ubuntu0.16.04.16+esm10
Available with Ubuntu Pro
php7.0-xml 7.0.33-0ubuntu0.16.04.16+esm10
Available with Ubuntu Pro
php7.0-xmlrpc 7.0.33-0ubuntu0.16.04.16+esm10
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-6305-3
https://ubuntu.com/security/notices/USN-6305-1
https://launchpad.net/bugs/2071768

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