USN-7943-1: libcaca vulnerability

Publication date

7 January 2026

Overview

libcaca could be made to crash if it opened a specially crafted file.


Packages

  • libcaca - text mode graphics utilities

Details

Han Zheng discovered that libcaca incorrectly handled certain images.
An attacker could possibly use this issue to cause libcaca to crash.

Han Zheng discovered that libcaca incorrectly handled certain images.
An attacker could possibly use this issue to cause libcaca to crash.

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
25.10 questing caca-utils –  0.99.beta20-5ubuntu0.25.10.1
libcaca0 –  0.99.beta20-5ubuntu0.25.10.1
25.04 plucky caca-utils –  0.99.beta20-5ubuntu0.25.04.1
libcaca0 –  0.99.beta20-5ubuntu0.25.04.1
24.04 LTS noble caca-utils –  0.99.beta20-4ubuntu0.1
libcaca0 –  0.99.beta20-4ubuntu0.1
22.04 LTS jammy caca-utils –  0.99.beta19-2.2ubuntu4.1
libcaca0 –  0.99.beta19-2.2ubuntu4.1
20.04 LTS focal caca-utils –  0.99.beta19-2.1ubuntu1.20.04.2+esm1  
libcaca0 –  0.99.beta19-2.1ubuntu1.20.04.2+esm1  
18.04 LTS bionic caca-utils –  0.99.beta19-2ubuntu0.18.04.3+esm1  
libcaca0 –  0.99.beta19-2ubuntu0.18.04.3+esm1  
16.04 LTS xenial caca-utils –  0.99.beta19-2ubuntu0.16.04.2+esm2  
libcaca0 –  0.99.beta19-2ubuntu0.16.04.2+esm2  
14.04 LTS trusty caca-utils –  0.99.beta18-1ubuntu5.1+esm3  
libcaca0 –  0.99.beta18-1ubuntu5.1+esm3  

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