USN-4038-1: bzip2 vulnerabilities

Releases

• Ubuntu 19.04
• Ubuntu 18.10
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• 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

• bzip2 - 1.0.6-9ubuntu0.19.04
• libbz2-1.0 - 1.0.6-9ubuntu0.19.04

Ubuntu 18.10

• bzip2 - 1.0.6-9ubuntu0.18.10
• libbz2-1.0 - 1.0.6-9ubuntu0.18.10

Ubuntu 18.04

• bzip2 - 1.0.6-8.1ubuntu0.1
• libbz2-1.0 - 1.0.6-8.1ubuntu0.1

Ubuntu 16.04

• bzip2 - 1.0.6-8ubuntu0.1
• libbz2-1.0 - 1.0.6-8ubuntu0.1

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

References

• CVE-2016-3189
• CVE-2019-12900

Related notices

• USN-4038-2: libbz2-dev, libbz2-1.0, lib32bz2-dev, lib64bz2-dev, bzip2-doc, lib64bz2-1.0, lib32bz2-1.0, bzip2
• USN-4146-1: clamav-daemon, clamdscan, libclamav9, clamav-base, clamav-testfiles, clamav-freshclam, clamav-docs, libclamav-dev, clamav-milter, clamav
• USN-4146-2: clamav-daemon, libclamav9, clamav-base, clamav-testfiles, clamav-freshclam, clamav-docs, libclamav-dev, clamav-milter, clamav