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==========================================================================
Ubuntu Security Notice USN-5119-1
October 21, 2021

libcaca vulnerabilities
==========================================================================

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

- Ubuntu 21.10
- Ubuntu 21.04
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

libcaca could be made to crash if it received a specially crafted image.

Software Description:
- libcaca: text mode graphics utilities

Details:

It was discovered that libcaca incorrectly handled certain images. An attacker
could possibly use this issue to cause a crash. (CVE-2021-30498,
 CVE-2021-30499)

Update instructions:

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

Ubuntu 21.10:
  caca-utils                      0.99.beta19-2.2ubuntu2.1
  libcaca0                        0.99.beta19-2.2ubuntu2.1

Ubuntu 21.04:
  caca-utils                      0.99.beta19-2.2ubuntu1.1
  libcaca0                        0.99.beta19-2.2ubuntu1.1

Ubuntu 20.04 LTS:
  caca-utils                      0.99.beta19-2.1ubuntu1.20.04.2
  libcaca0                        0.99.beta19-2.1ubuntu1.20.04.2

Ubuntu 18.04 LTS:
  caca-utils                      0.99.beta19-2ubuntu0.18.04.3
  libcaca0                        0.99.beta19-2ubuntu0.18.04.3

Ubuntu 16.04 ESM:
  caca-utils                      0.99.beta19-2ubuntu0.16.04.2+esm1
  libcaca0                        0.99.beta19-2ubuntu0.16.04.2+esm1

Ubuntu 14.04 ESM:
  caca-utils                      0.99.beta18-1ubuntu5.1+esm2
  libcaca0                        0.99.beta18-1ubuntu5.1+esm2

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

References:
  https://ubuntu.com/security/notices/USN-5119-1
  CVE-2021-30498, CVE-2021-30499

Package Information:
  https://launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2.2ubuntu2.1
  https://launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2.2ubuntu1.1
  https://launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2.1ubuntu1.20.04.2
  https://launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2ubuntu0.18.04.3

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