Bug 503928 (CVE-2009-0023) - CVE-2009-0023 apr-util heap buffer underwrite
Summary: CVE-2009-0023 apr-util heap buffer underwrite
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2009-0023
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: 504558 504559 504560 504561 504562 505027 591930 595829
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-06-03 12:10 UTC by Josh Bressers
Modified: 2019-09-29 12:30 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-06-20 17:10:53 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2009:1107 0 normal SHIPPED_LIVE Moderate: apr-util security update 2009-06-16 22:05:45 UTC
Red Hat Product Errata RHSA-2009:1108 0 normal SHIPPED_LIVE Moderate: httpd security update 2009-06-16 22:04:54 UTC
Red Hat Product Errata RHSA-2009:1160 0 normal SHIPPED_LIVE Important: httpd22 security update 2009-07-17 13:13:34 UTC
Red Hat Product Errata RHSA-2010:0602 0 normal SHIPPED_LIVE Moderate: Red Hat Certificate System 7.3 security update 2010-08-05 14:04:51 UTC

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
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