Updated Bzip2 packages has been released for Ubuntu Linux

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Ubuntu Security Notice USN-4038-1
June 26, 2019

bzip2 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in bzip2.

Software Description:
- 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 LTS:
bzip2 1.0.6-8.1ubuntu0.1
libbz2-1.0 1.0.6-8.1ubuntu0.1

Ubuntu 16.04 LTS:
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:
https://usn.ubuntu.com/4038-1
CVE-2016-3189, CVE-2019-12900

Package Information:
https://launchpad.net/ubuntu/+source/bzip2/1.0.6-9ubuntu0.19.04
https://launchpad.net/ubuntu/+source/bzip2/1.0.6-9ubuntu0.18.10
https://launchpad.net/ubuntu/+source/bzip2/1.0.6-8.1ubuntu0.1
https://launchpad.net/ubuntu/+source/bzip2/1.0.6-8ubuntu0.1

  Bzip2 Security Update for Ubuntu