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USN-4038-2: bzip2 vulnerabilities

26 June 2019

Several security issues were fixed in bzip2.

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Releases

Packages

  • 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)

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.

Learn more about Ubuntu Pro

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.

Related notices

  • USN-4038-1: bzip2-doc, bzip2, libbz2-dev, libbz2-1.0
  • USN-4146-1: clamav-freshclam, clamav, clamdscan, libclamav-dev, libclamav9, clamav-daemon, clamav-milter, clamav-docs, clamav-base, clamav-testfiles
  • USN-4146-2: clamav-freshclam, clamav, libclamav9, libclamav-dev, clamav-daemon, clamav-milter, clamav-docs, clamav-base, clamav-testfiles