full-disclosure - [SECURITY] CVE-2012-2733 Apache Tomcat Denial of Service

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date: Mon, 05 Nov 2012 22:57:30 +0000
From: Mark Thomas <markt@...che.org>
To: Tomcat Users List <users@...cat.apache.org>
Cc: Tomcat Developers List <dev@...cat.apache.org>,
	full-disclosure@...ts.grok.org.uk,
	Tomcat Announce List <announce@...cat.apache.org>,
	bugtraq@...urityfocus.com, announce@...che.org
Subject: [SECURITY] CVE-2012-2733 Apache Tomcat Denial of
	Service

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

CVE-2012-2733 Apache Tomcat Denial of Service

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
- - Tomcat 7.0.0 to 7.0.27
- - Tomcat 6.0.0 to 6.0.35

Description:
The checks that limited the permitted size of request headers were
implemented too late in the request parsing process for the HTTP NIO
connector. This enabled a malicious user to trigger an
OutOfMemoryError by sending a single request with very large headers.

Mitigation:
Users of affected versions should apply one of the following mitigations:
- - Tomcat 7.0.x users should upgrade to 7.0.28 or later
- - Tomcat 6.0.x users should upgrade to 6.0.36 or later

Credit:
This issue was identified by Josh Spiewak.

References:
http://tomcat.apache.org/security.html
http://tomcat.apache.org/security-7.html
http://tomcat.apache.org/security-6.html

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (MingW32)
Comment: Using GnuPG with Mozilla - http://www.enigmail.net/
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=+jW7
-----END PGP SIGNATURE-----

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/