Ubuntu alert USN-8318-1 (libcaca)

From:
             
 
noreply+usn-bot@canonical.com
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-8318-1] libcaca vulnerability
Date:
             
 
Wed, 27 May 2026 13:37:58 +0000
Message-ID:
             
 
<E1wSESM-0005mw-PO@lists.ubuntu.com>
==========================================================================
Ubuntu Security Notice USN-8318-1
May 27, 2026

libcaca vulnerability
==========================================================================

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

- Ubuntu 26.04 LTS
- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

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

Software Description:
- libcaca: text mode graphics utilities

Details:

It was discovered that libcaca incorrectly handled certain malformed files.
An attacker could use this issue to cause libcaca to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 26.04 LTS
  caca-utils                      0.99.beta20-6ubuntu2.1
  libcaca0                        0.99.beta20-6ubuntu2.1

Ubuntu 25.10
  caca-utils                      0.99.beta20-5ubuntu0.25.10.2
  libcaca0                        0.99.beta20-5ubuntu0.25.10.2

Ubuntu 24.04 LTS
  caca-utils                      0.99.beta20-4ubuntu0.2
  libcaca0                        0.99.beta20-4ubuntu0.2

Ubuntu 22.04 LTS
  caca-utils                      0.99.beta19-2.2ubuntu4.2
  libcaca0                        0.99.beta19-2.2ubuntu4.2

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

References:
  https://ubuntu.com/security/notices/USN-8318-1
  CVE-2026-42046

Package Information:
  https://launchpad.net/ubuntu/+source/libcaca/0.99.beta20-...
  https://launchpad.net/ubuntu/+source/libcaca/0.99.beta20-...
  https://launchpad.net/ubuntu/+source/libcaca/0.99.beta20-...
  https://launchpad.net/ubuntu/+source/libcaca/0.99.beta19-...


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