Bug 503928 (CVE-2009-0023)

Summary:	CVE-2009-0023 apr-util heap buffer underwrite
Product:	[Other] Security Response	Reporter:	Josh Bressers <bressers>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bojan, jorton, kreilly, mjc
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:	2012-06-20 17:10:53 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:	504558, 504559, 504560, 504561, 504562, 505027, 591930, 595829
Bug Blocks:

Description Josh Bressers 2009-06-03 12:10:19 UTC

A heap buffer underwrite flaw was found in apr-util's apr_strmatch_precompile() function.

This flaw could allow a remote attacker to overwrite arbitrary heap memory.

The upstream fix is here:
http://svn.apache.org/viewvc?view=rev&revision=779880

Comment 1 Josh Bressers 2009-06-03 13:27:01 UTC

After looking through the things in RHEL that use this fuction, nothing is using it to parse untrusted remote data. Everything uses this function to parse configuration data, which significantly reduces the severity of this flaw.

Comment 2 Joe Orton 2009-06-07 12:53:57 UTC

This subsequent change:

http://svn.apache.org/viewvc?view=rev&revision=781063

fixes another instance of the same mistake, but in this case it would seem to result in only a buffer underread, not a write.  I'll include both changes.

Comment 5 errata-xmlrpc 2009-06-16 22:05:04 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 3

Via RHSA-2009:1108 https://rhn.redhat.com/errata/RHSA-2009-1108.html

Comment 6 errata-xmlrpc 2009-06-16 22:05:53 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 4

Via RHSA-2009:1107 https://rhn.redhat.com/errata/RHSA-2009-1107.html

Comment 7 Fedora Update System 2009-06-24 19:32:45 UTC

apr-util-1.2.12-7.fc9 has been pushed to the Fedora 9 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2009-06-24 19:36:36 UTC

apr-util-1.3.7-1.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2009-06-24 19:40:21 UTC

apr-util-1.3.7-1.fc10 has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 11 errata-xmlrpc 2009-07-17 13:13:39 UTC

This issue has been addressed in following products:

  JBEWS 1.0.0 for RHEL 4

Via RHSA-2009:1160 https://rhn.redhat.com/errata/RHSA-2009-1160.html

Comment 13 errata-xmlrpc 2010-08-04 21:31:37 UTC

This issue has been addressed in following products:

  Red Hat Certificate System 7.3

Via RHSA-2010:0602 https://rhn.redhat.com/errata/RHSA-2010-0602.html