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AUSCERT Security Bulletin
ASB-2011.0064.2
Apache Tomcat updated to correct vulnerabilities
19 August 2011
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AusCERT Security Bulletin Summary
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Product: Apache Tomcat 7.0.19 and prior
Apache Tomcat 6.0.32 and prior
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Increased Privileges -- Unknown/Unspecified
Denial of Service -- Unknown/Unspecified
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2011-2729 CVE-2011-2526 CVE-2011-2204
Member content until: Thursday, September 15 2011
Revision History: August 19 2011: Added Tomcat 6.0.33
August 16 2011: Initial Release
OVERVIEW
Apache has released a new version of Tomcat to correct some
vulnerabilities and stability issues.
IMPACT
CVE-2011-2729 "Commons Daemon fails to drop capabilities (Apache
Tomcat)" [1][2], corrected in Tomcat 7.0.20 and 6.0.33.
CVE-2011-2526 "Protect against infinite loops (HTTP NIO) and crashes
(HTTP APR) if sendfile is configured to send more data than is
available in the file." [1][2] Corrected in 7.0.19 and 6.0.33.
CVE-2011-2204 "Prevent user passwords appearing in log files if a
runtime exception (e.g. OOME) occurs while creating a new user for a
MemoryUserDatabase via JMX." [1][2] Corrected in 7.0.17 and 6.0.33.
MITIGATION
It is recommended to update to the latest version of Tomcat to
correct these vulnerabilities.
REFERENCES
[1] Apache Tomcat 7
http://tomcat.apache.org/tomcat-7.0-doc/changelog.html
[2] Apache Tomcat 6
http://tomcat.apache.org/tomcat-6.0-doc/changelog.html
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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