Ubuntu Security Update USN-4038-2: bzip2 vulnerabilities

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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


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