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Apache Traffic Server Host Header Denial Of Service

Apache Traffic Server Host Header Denial Of Service
Posted Mar 23, 2012
Site trafficserver.apache.org

Apache Traffic Server versions prior to 3.0.4 as well as all development releases prior to 3.1.3 suffers from a remote denial of service vulnerability.

tags | advisory, remote, denial of service
advisories | CVE-2012-0256
MD5 | 240c1a92bd4e543c7b222ca4f12a511c

Apache Traffic Server Host Header Denial Of Service

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Everyone,

Below is our announcement for the security issue reported to us from
Codenomicon, via CERT-FI. All previous versions of Apache Traffic Server are
vulnerable, and we urge users to upgrade to either v3.0.4 or v3.1.3
immediately. Both releases are available from our download site at

http://trafficserver.apache.org/downloads


In addition to fixing the CVE-2012-0256 issue, both releases include various
other bug fixes. For more details on those fixes, please visit the download
site above.


We like to thank everyone involved with reporting and working on this
incident. The CERT-FI announcement will be made available soon at

https://www.cert.fi/en/reports/2012/vulnerability612884.html


Sincerely,

-- Leif, on behalf of the Apache Traffic Server community

CVE-2012-0256: Apache Traffic Server host header vulnerability

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected: All stable Apache Traffic Server versions released
before v3.0.4, as well as all development releases prior to v3.1.3.

Description: A request with a very large Host: header can cause the server
to crash. This is a heap allocation issue.

Mitigation: All v2.0.x and v3.0.x users should upgrade to v3.0.4. Users of
the current development releases, v3.1.x, should upgrade to v3.1.3.

Credit: This issue was discovered by the Codenomicon CROSS project, and
reported to Apache via CERT-FI.

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