Bug 503928 - (CVE-2009-0023) CVE-2009-0023 apr-util heap buffer underwrite
CVE-2009-0023 apr-util heap buffer underwrite
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
source=redhat,public=20090603,reporte...
: Security
Depends On: 595829 504558 504559 504560 504561 504562 505027 591930
Blocks:
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Reported: 2009-06-03 08:10 EDT by Josh Bressers
Modified: 2012-06-20 13:10 EDT (History)
4 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-06-20 13:10:53 EDT
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Description Josh Bressers 2009-06-03 08:10:19 EDT
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 09:27:01 EDT
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 08:53:57 EDT
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 18:05:04 EDT
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 18:05:53 EDT
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 15:32:45 EDT
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 15:36:36 EDT
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 15:40:21 EDT
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 09:13:39 EDT
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 17:31:37 EDT
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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