USN-4038-2: bzip2 vulnerabilities

Releases

• Ubuntu 14.04 ESM
• Ubuntu 12.04

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)

Update instructions

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

Ubuntu 14.04

• 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

• 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

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

References

• CVE-2016-3189
• CVE-2019-12900

Related notices

• USN-4038-1
• USN-4146-1
• USN-4146-2