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Ubuntu 22.04 LTS: libcaca Important Crash Issue USN-7943-1 CVE-2022-0856

ubuntu
Calendar Grey January 7, 2026
Dist Ubuntu Esm H88
libcaca may crash when handling specially crafted files across multiple Ubuntu versions. Update now to protect your system.
libcaca could be made to crash if it opened a specially crafted file.

Summary

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

Software Description:

- 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.

Topics%20covered

Topics Covered

security advisory Ubuntu important crash issue libcaca text mode graphics

Update Instructions

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

Ubuntu 25.10
  caca-utils                      0.99.beta20-5ubuntu0.25.10.1
  libcaca0                        0.99.beta20-5ubuntu0.25.10.1

Ubuntu 25.04
  caca-utils                      0.99.beta20-5ubuntu0.25.04.1
  libcaca0                        0.99.beta20-5ubuntu0.25.04.1

Ubuntu 24.04 LTS
  caca-utils                      0.99.beta20-4ubuntu0.1
  libcaca0                        0.99.beta20-4ubuntu0.1

Ubuntu 22.04 LTS
  caca-utils                      0.99.beta19-2.2ubuntu4.1
  libcaca0                        0.99.beta19-2.2ubuntu4.1

Ubuntu 20.04 LTS
  caca-utils                      0.99.beta19-2.1ubuntu1.20.04.2+esm1
                                  Available with Ubuntu Pro
  libcaca0                        0.99.beta19-2.1ubuntu1.20.04.2+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  caca-utils                      0.99.beta19-2ubuntu0.18.04.3+esm1
                                  Available with Ubuntu Pro
  libcaca0                        0.99.beta19-2ubuntu0.18.04.3+esm1
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  caca-utils                      0.99.beta19-2ubuntu0.16.04.2+esm2
                                  Available with Ubuntu Pro
  libcaca0                        0.99.beta19-2ubuntu0.16.04.2+esm2
                                  Available with Ubuntu Pro

Ubuntu 14.04 LTS
  caca-utils                      0.99.beta18-1ubuntu5.1+esm3
                                  Available with Ubuntu Pro
  libcaca0                        0.99.beta18-1ubuntu5.1+esm3
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-7943-1

CVE-2022-0856

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7943-1

Topics%20covered

Topics Covered

security advisory Ubuntu important crash issue libcaca text mode graphics

Package Information

https://launchpad.net/ubuntu/+source/libcaca/0.99.beta20-5ubuntu0.25.10.1
https://launchpad.net/ubuntu/+source/libcaca/0.99.beta20-5ubuntu0.25.04.1
https://launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2.2ubuntu4.1

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