USN-4038-4: bzip2 regression

4 July 2019

USN-4038-1 introduced a regression in bzip2.

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Releases

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. This update provides the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM.

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.

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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.

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Update instructions

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

Ubuntu 14.04
Ubuntu 12.04

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

References

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