[USN-5497-1] Libjpeg6b vulnerabilities


========================================================================== Ubuntu Security Notice USN-5497-1 June 30, 2022
libjpeg6b vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 14.04 ESM
Summary:
Several security issues were fixed in Libjpeg6b.
Software Description: – libjpeg6b: library for handling JPEG files
Details:
It was discovered that Libjpeg6b was not properly performing bounds checks when compressing PPM and Targa image files. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-11212)
Chijin Zhou discovered that Libjpeg6b was incorrectly handling the EOF character in input data when generating JPEG files. An attacker could possibly use this issue to force the execution of a large loop, force excessive memory consumption, and cause a denial of service. (CVE-2018-11813)
Sheng Shu and Dongdong She discovered that Libjpeg6b was not properly limiting the amount of memory being used when it was performing decompression or multi-pass compression operations. An attacker could possibly use this issue to force excessive memory consumption and cause a denial of service. (CVE-2020-14152)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04 ESM:   libjpeg62                       6b1-4ubuntu1+esm1
In general, a standard system update will make all the necessary changes.
References:   ubuntu.com/security/notices/USN-5497-1   CVE-2018-11212, CVE-2018-11213, CVE-2018-11214, CVE-2018-11813,   CVE-2020-14152