Several security issues were fixed in libcaca.
USN-3860-1 fixed a vulnerability in libcaca. This update provides the corresponding update for Ubuntu 12.04 ESM.
15 January 2019
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in libcaca.
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)
The problem can be corrected by updating your system to the following package versions:
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.