USN-7502-1: Horde Css Parser vulnerability

Publication date

7 May 2025

Overview

Horde Css Parser could be made to crash or run programs as your login if it opened a specially crafted file.


Details

It was discovered that Horde Css Parser did not correctly handle
parsing uncontrolled CSS data. An attacker could possibly use
this issue to perform remote code execution. (CVE-2020-13756)

It was discovered that Horde Css Parser did not correctly handle
parsing uncontrolled CSS data. An attacker could possibly use
this issue to perform remote code execution. (CVE-2020-13756)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic php-horde-css-parser –  1.0.11-1ubuntu1+esm1  
16.04 xenial php-horde-css-parser –  1.0.8-1ubuntu1+esm1  

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