Apache Commons Compress / Apache Ant Denial Of Service

2012.05.25
Credit: Stefan Bodewig
Risk: Medium
Local: No
Remote: Yes
CVE: CVE-2012-2098
CWE: CWE-310


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Partial

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

References:

http://commons.apache.org/compress/security.html
http://ant.apache.org/security.html


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