USN-3860-1: libcaca vulnerabilities

15 January 2019

libcaca vulnerabilities

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

  • Ubuntu 18.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in libcaca.

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 denial of service. (CVE-2018-20544)

It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this issue to execute arbitrary code. (CVE-2018-20545, CVE-2018-20548, CVE-2018-20459)

It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this issue to access sensitive information. (CVE-2018-20546, CVE-2018-20547)

Update instructions

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

Ubuntu 18.10
caca-utils - 0.99.beta19-2ubuntu0.18.10.1
libcaca0 - 0.99.beta19-2ubuntu0.18.10.1
Ubuntu 18.04 LTS
caca-utils - 0.99.beta19-2ubuntu0.18.04.1
libcaca0 - 0.99.beta19-2ubuntu0.18.04.1
Ubuntu 16.04 LTS
caca-utils - 0.99.beta19-2ubuntu0.16.04.1
libcaca0 - 0.99.beta19-2ubuntu0.16.04.1
Ubuntu 14.04 LTS
caca-utils - 0.99.beta18-1ubuntu5.1
libcaca0 - 0.99.beta18-1ubuntu5.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References