Bug 675338 (CVE-2011-0534) - CVE-2011-0534 tomcat: remote DoS via NIO connector
Summary: CVE-2011-0534 tomcat: remote DoS via NIO connector
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2011-0534
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 674601 674921 674922 675794 676011
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-02-04 23:24 UTC by Vincent Danen
Modified: 2019-09-29 12:42 UTC (History)
7 users (show)

Fixed In Version: tomcat6-6.0.24-19.el6_0
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-06-09 09:59:01 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:0335 0 normal SHIPPED_LIVE Important: tomcat6 security and bug fix update 2011-03-09 20:52:26 UTC
Red Hat Product Errata RHSA-2011:0348 0 normal SHIPPED_LIVE Important: tomcat6 security update 2011-03-11 00:38:28 UTC
Red Hat Product Errata RHSA-2011:0350 0 normal SHIPPED_LIVE Important: tomcat5 and tomcat6 security update 2011-03-11 01:09:22 UTC

Description Vincent Danen 2011-02-04 23:24:31 UTC 
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 17:11:08 UTC 
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 19:02:43 UTC 
Created tomcat6 tracking bugs for this issue

Affects: fedora-all [bug 675794]
Comment 5 errata-xmlrpc 2011-03-09 20:52:33 UTC 
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 2011-03-11 00:38:37 UTC 
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 2011-03-11 01:09:26 UTC 
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
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