Public Date:
810406: CVE-2012-2098 apache-commons-compress: denial of service flaw when compressing certain files

The MITRE CVE dictionary describes this issue as:

Algorithmic complexity vulnerability in the sorting algorithms in bzip2 compressing stream (BZip2CompressorOutputStream) in Apache Commons Compress before 1.4.1 allows remote attackers to cause a denial of service (CPU consumption) via a file with many repeating inputs.

Find out more about CVE-2012-2098 from the MITRE CVE dictionary dictionary and NIST NVD.


The Red Hat Security Response Team has rated this issue as having low security impact. A future update may address this issue in Red Hat Enterprise Linux 5 and 6 for Apache Ant. This issue does not affect the Apache commons-compress library as shipped with JBoss Enterprise BRMS Platform 5.2.0 or JBoss Enterprise Portal Platform 5.2.0. For additional information, refer to the Issue Severity Classification:

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 2.6
Base Metrics AV:N/AC:H/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 6 ant Fix deferred
Red Hat Enterprise Linux 5 ant Fix deferred