USN-3860-2: libcaca vulnerabilities

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

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

Source: USN-3860-2: libcaca vulnerabilities

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