-------- Original Message --------Subject: [CVE-2012-2098] Apache Commons Compress and Apache Ant denial of service vulnerability
Date: Wed, 23 May 2012 16:00:48 +0200 From: Stefan Bodewig <bode...@apache.org> Reply-To: Commons Developers List <d...@commons.apache.org>To: d...@commons.apache.org, u...@commons.apache.org, d...@ant.apache.org, u...@ant.apache.org, annou...@apache.org, secur...@apache.org, full-disclos...@lists.grok.org.uk, bugt...@securityfocus.com, David Jorm <dj...@redhat.com>
CVE-2012-2098: Apache Commons Compress and Apache Ant denial of service
vulnerability
Severity: Low
Vendor:
The Apache Software Foundation
Versions Affected:
Apache Commons Compress 1.0 to 1.4
Apache Ant 1.5 to 1.8.3
Description:
The bzip2 compressing streams in Apache Commons Compress and Apache Ant
internally use sorting algorithms with unacceptable worst-case
performance on very repetitive inputs. A specially crafted input to
Compress' BZip2CompressorOutputStream or Ant's<bzip2> task can be used
to make the process spend a very long time while using up all available
processing time effectively leading to a denial of service.
Mitigation:
Commons Compress users should upgrade to 1.4.1
Ant users should upgrade to 1.8.4
Credit:
This issue was discovered by David Jorm of the Red Hat Security Response
Team.
References:
http://commons.apache.org/compress/security.html
http://ant.apache.org/security.html
Stefan Bodewig
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