USN-4038-2: bzip2 vulnerabilities

USN-4038-2: bzip2 vulnerabilities

bzip2 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 14.04 ESM
• Ubuntu 12.04 ESM

Summary

Several security issues were fixed in bzip2.

Software Description

• bzip2 – high-quality block-sorting file compressor – utilities

Details

USN-4038-1 fixed several vulnerabilities in bzip2. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

Aladdin Mubaied discovered that bzip2 incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2016-3189)

It was discovered that bzip2 incorrectly handled certain files.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2019-12900)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04 ESM

bzip2 – 1.0.6-5ubuntu0.1~esm1

lib32bz2-1.0 – 1.0.6-5ubuntu0.1~esm1

lib64bz2-1.0 – 1.0.6-5ubuntu0.1~esm1

libbz2-1.0 – 1.0.6-5ubuntu0.1~esm1

Ubuntu 12.04 ESM

bzip2 – 1.0.6-1ubuntu0.1

lib32bz2-1.0 – 1.0.6-1ubuntu0.1

lib64bz2-1.0 – 1.0.6-1ubuntu0.1

libbz2-1.0 – 1.0.6-1ubuntu0.1

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

• USN-4038-1
• CVE-2016-3189
• CVE-2019-12900

Source: USN-4038-2: bzip2 vulnerabilities