========================================================================== Ubuntu Security Notice USN-3860-2 January 15, 2019 libcaca vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 ESM Summary: Several security issues were fixed in libcaca. Software Description: - libcaca: text mode graphics utilities Details: USN-3860-1 fixed a vulnerability in libcaca. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory 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 12.04 ESM: caca-utils 0.99.beta17-2.1ubuntu2.1 libcaca0 0.99.beta17-2.1ubuntu2.1 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3860-2 https://usn.ubuntu.com/usn/usn-3860-1 CVE-2018-20544, CVE-2018-20545, CVE-2018-20546, CVE-2018-20547, CVE-2018-20548, CVE-2018-20549