Ubuntu alert USN-5497-1 (libjpeg6b)

From:
             
 
Camila Camargo de Matos <camila.camargodematos@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-5497-1] Libjpeg6b vulnerabilities
Date:
             
 
Thu, 30 Jun 2022 11:20:27 -0300
Message-ID:
             
 
<48a74faf-3d21-fece-ff27-53a15ee573d4@canonical.com>
==========================================================================
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:
   https://ubuntu.com/security/notices/USN-5497-1
   CVE-2018-11212, CVE-2018-11213, CVE-2018-11214, CVE-2018-11813,
   CVE-2020-14152