Executive Summary

Title bzip2 regression
Name USN-4038-4 First vendor Publication 2019-07-04
Vendor Ubuntu Last vendor Modification 2019-07-04
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores


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

- Ubuntu 14.04 ESM - Ubuntu 12.04 ESM


USN-4038-1 introduced a regression in bzip2.

Software Description: - bzip2: high-quality block-sorting file compressor - utilities


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.

Update instructions:

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

Ubuntu 14.04 ESM:
bzip2 1.0.6-5ubuntu0.1~esm2
lib32bz2-1.0 1.0.6-5ubuntu0.1~esm2
lib64bz2-1.0 1.0.6-5ubuntu0.1~esm2
libbz2-1.0 1.0.6-5ubuntu0.1~esm2

Ubuntu 12.04 ESM:
bzip2 1.0.6-1ubuntu0.2
lib32bz2-1.0 1.0.6-1ubuntu0.2
lib64bz2-1.0 1.0.6-1ubuntu0.2
libbz2-1.0 1.0.6-1ubuntu0.2

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


Original Source

Url : http://www.ubuntu.com/usn/USN-4038-4

Alert History

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Date Informations
2019-07-04 21:18:59
  • First insertion