Bug 883637 (CVE-2012-4534)

Summary:	CVE-2012-4534 Tomcat - Denial Of Service when using NIO+SSL+sendfile
Product:	[Other] Security Response	Reporter:	Arun Babu Neelicattu <aneelica>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	djorm, grocha, jlieskov, lfuka, pcheung
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-07-03 06:57:33 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	883690, 883691, 883692, 883693, 883694
Bug Blocks:	883674

Description Arun Babu Neelicattu 2012-12-05 03:33:33 UTC

When using the NIO connector with sendfile and HTTPS enabled, if a client breaks the connection while reading the response an infinite loop is entered leading to a denial of service.

Source: Tomcat security pages. [1,2]

[1] http://tomcat.apache.org/security-6.html
[2] http://tomcat.apache.org/security-7.html

Comment 3 David Jorm 2012-12-05 06:25:38 UTC

Created tomcat6 tracking bugs for this issue

Affects: fedora-all [bug 883690]

Comment 4 David Jorm 2012-12-05 06:25:41 UTC

Created tomcat tracking bugs for this issue

Affects: fedora-16 [bug 883691]

Comment 5 Fedora Update System 2012-12-19 08:29:26 UTC

tomcat-7.0.33-1.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Jan Lieskovsky 2012-12-19 13:54:24 UTC

Upstream bug report (including reproducer):
  https://issues.apache.org/bugzilla/show_bug.cgi?id=52858

Comment 9 errata-xmlrpc 2013-02-19 20:30:59 UTC

This issue has been addressed in following products:

  JBoss Enterprise Web Server 2.0.0

Via RHSA-2013:0265 https://rhn.redhat.com/errata/RHSA-2013-0265.html

Comment 10 errata-xmlrpc 2013-02-19 22:15:09 UTC

This issue has been addressed in following products:

  JBEWS 2 for RHEL 5
  JBEWS 2 for RHEL 6

Via RHSA-2013:0266 https://rhn.redhat.com/errata/RHSA-2013-0266.html

Comment 11 errata-xmlrpc 2013-03-11 19:33:52 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:0623 https://rhn.redhat.com/errata/RHSA-2013-0623.html