Bug 675338 – CVE-2011-0534 tomcat: remote DoS via NIO connector

Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.

Bug 675338 - (CVE-2011-0534) CVE-2011-0534 tomcat: remote DoS via NIO connector

Summary:	CVE-2011-0534 tomcat: remote DoS via NIO connector

Status:	CLOSED ERRATA

Aliases:	CVE-2011-0534

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	public=20110121,reported=20110204,sou...
Keywords:	Security

Depends On:	674601 674921 674922 675794 676011
Blocks:
	Show dependency tree / graph

Reported:	2011-02-04 18:24 EST by Vincent Danen
Modified:	2011-06-09 05:59 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	tomcat6-6.0.24-19.el6_0
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2011-06-09 05:59:01 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:0335	normal	SHIPPED_LIVE	Important: tomcat6 security and bug fix update	2011-03-09 15:52:26 EST
Red Hat Product Errata	RHSA-2011:0348	normal	SHIPPED_LIVE	Important: tomcat6 security update	2011-03-10 19:38:28 EST
Red Hat Product Errata	RHSA-2011:0350	normal	SHIPPED_LIVE	Important: tomcat5 and tomcat6 security update	2011-03-10 20:09:22 EST

Groups: None (edit)

Description Vincent Danen 2011-02-04 18:24:31 EST

Apache Tomcat 6.0.32 was released [1] to fix, among other things, a security flaw in the NIO connector.  The NIO connector would expand its buffer endlessly while reading in the request line, effectively ignoring the maxHttpHeaderSize setting.  The upstream commit to fix the issue is in r1066313 [2] and there is a corresponding bugzilla entry [3].  By the indications upstream, this only affects Tomcat 6.x and 7.x, although it does not specifically mention that 5.x is not vulnerable.

[1] http://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.32
[2] http://svn.apache.org/viewvc?view=revision&revision=1066313
[3] https://issues.apache.org/bugzilla/show_bug.cgi?id=50631

Comment 1 Vincent Danen 2011-02-07 12:11:08 EST

The upstream mail sent to the mailing lists has further details on this issue.  It only affects Tomcat 6.0.0 to 6.0.30 and Tomcat 7.0.0 to 7.0.6:

http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0076.html

Comment 2 Vincent Danen 2011-02-07 14:02:43 EST

Created tomcat6 tracking bugs for this issue

Affects: fedora-all [bug 675794]

Comment 5 errata-xmlrpc 2011-03-09 15:52:33 EST

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0335 https://rhn.redhat.com/errata/RHSA-2011-0335.html

Comment 6 errata-xmlrpc 2011-03-10 19:38:37 EST

This issue has been addressed in following products:

  JBEWS 1.0 for RHEL 4
  JBEWS 1.0 for RHEL 5

Via RHSA-2011:0348 https://rhn.redhat.com/errata/RHSA-2011-0348.html

Comment 7 errata-xmlrpc 2011-03-10 20:09:26 EST

This issue has been addressed in following products:

  JBoss Enterprise Web Server 1.0

Via RHSA-2011:0350 https://rhn.redhat.com/errata/RHSA-2011-0350.html

Note You need to log in before you can comment on or make changes to this bug.