USN-4038-3: bzip2 regression

Publication date

4 July 2019

Overview

USN-4038-1 introduced a regression in bzip2.


Packages

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

Details

USN-4038-1 fixed a vulnerability in bzip2. The update introduced a regression causing
bzip2 to incorrect raises CRC errors for some files.

We apologize for the inconvenience.

Original advisory details:

It was discovered that bzip2 incorrectly handled certain files.
An attacker could possibly use this issue to execute arbitrary code.

USN-4038-1 fixed a vulnerability in bzip2. The update introduced a regression causing
bzip2 to incorrect raises CRC errors for some files.

We apologize for the inconvenience.

Original advisory details:

It was discovered that bzip2 incorrectly handled certain files.
An attacker could possibly use this issue to execute arbitrary code.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
19.04 disco bzip2 –  1.0.6-9ubuntu0.19.04.1
libbz2-1.0 –  1.0.6-9ubuntu0.19.04.1
18.10 cosmic bzip2 –  1.0.6-9ubuntu0.18.10.1
libbz2-1.0 –  1.0.6-9ubuntu0.18.10.1
18.04 bionic bzip2 –  1.0.6-8.1ubuntu0.2
libbz2-1.0 –  1.0.6-8.1ubuntu0.2
16.04 xenial bzip2 –  1.0.6-8ubuntu0.2
libbz2-1.0 –  1.0.6-8ubuntu0.2

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

Talk to a member of the team ›