USN-4038-1: bzip2 vulnerabilities

USN-4038-1: bzip2 vulnerabilities

bzip2 vulnerabilities

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

  • Ubuntu 19.04
  • Ubuntu 18.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

Summary

Several security issues were fixed in bzip2.

Software Description

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

Details

Aladdin Mubaied discovered that bzip2 incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 16.04 LTS. (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 19.04
bzip21.0.6-9ubuntu0.19.04
libbz2-1.01.0.6-9ubuntu0.19.04
Ubuntu 18.10
bzip21.0.6-9ubuntu0.18.10
libbz2-1.01.0.6-9ubuntu0.18.10
Ubuntu 18.04 LTS
bzip21.0.6-8.1ubuntu0.1
libbz2-1.01.0.6-8.1ubuntu0.1
Ubuntu 16.04 LTS
bzip21.0.6-8ubuntu0.1
libbz2-1.01.0.6-8ubuntu0.1

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-4038-1: bzip2 vulnerabilities

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