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Secunia Security Advisory 51138

Secunia Security Advisory 51138
Posted Nov 6, 2012
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A weakness and a vulnerability have been reported in Apache Tomcat, which can be exploited by malicious people to bypass certain security restrictions and cause a DoS (Denial of Service).

tags | advisory, denial of service
MD5 | 227ca41e8274b73707870decd8e7e248

Secunia Security Advisory 51138

Change Mirror Download
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The final version of the CSI 6.0 has been released.
Find out why this is not just another Patch Management solution: http://secunia.com/blog/325/

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TITLE:
Apache Tomcat Security Bypass and Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA51138

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/51138/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=51138

RELEASE DATE:
2012-11-06

DISCUSS ADVISORY:
http://secunia.com/advisories/51138/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/51138/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=51138

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A weakness and a vulnerability have been reported in Apache Tomcat,
which can be exploited by malicious people to bypass certain security
restrictions and cause a DoS (Denial of Service).

1) An error within the "parseHeaders()" function
(InternalNioInputBuffer.java) when parsing request headers does not
properly verify the permitted size and can be exploited to trigger an
OutOfMemoryError exception via specially crafted headers.

This vulnerability is reported in versions 6.0.0-6.0.35 and
7.0.0-7.0.27.

2) An error within DIGEST authentication mechanism does not properly
check server nonces.

This weakness is reported in versions 5.5.0-5.5.35, 6.0.0-6.0.35, and
7.0.0-7.0.29.

SOLUTION:
Update to version 5.5.36, 6.0.36, or 7.0.30.

PROVIDED AND/OR DISCOVERED BY:
1) The vendor credits Josh Spiewak.
2) The vendor credits Tilmann Kuhn.

ORIGINAL ADVISORY:
http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.30
http://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.36
http://tomcat.apache.org/security-5.html#Fixed_in_Apache_Tomcat_5.5.36

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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