medium
4.3
CWE
119
Advisory Published
CVE Published
Updated

CVE-2009-0023: Buffer Overflow

First published: Wed Jun 03 2009(Updated: )

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: <a href="http://svn.apache.org/viewvc?view=rev&amp;revision=779880">http://svn.apache.org/viewvc?view=rev&amp;revision=779880</a>

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Apache APR<=1.3.4
Apache APR=0.9.1
Apache APR=0.9.2
Apache APR=0.9.3
Apache APR=0.9.4
Apache APR=0.9.5
Apache APR=1.0
Apache APR=1.0.1
Apache APR=1.0.2
Apache APR=1.1.0
Apache APR=1.1.1
Apache APR=1.1.2
Apache APR=1.2.1
Apache APR=1.2.2
Apache APR=1.2.6
Apache APR=1.2.7
Apache APR=1.2.8
Apache APR=1.3.0
Apache APR=1.3.1
Apache APR=1.3.2
Apache APR=1.3.3
Apache HTTP Server>=2.2.0<2.2.12

Remedy

http://www.debian.org/security/2009/dsa-1812

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=503928

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2009-0023?

    CVE-2009-0023 is classified as a high severity vulnerability due to its potential for remote exploitation.

  • How do I fix CVE-2009-0023?

    To fix CVE-2009-0023, upgrade to a version of apr-util that is later than 1.3.4 or applies the relevant upstream patch.

  • Which versions of apr-util are affected by CVE-2009-0023?

    CVE-2009-0023 affects apr-util versions prior to 1.3.5 and specifically includes versions from 0.9.1 to 1.3.4.

  • What type of vulnerability is CVE-2009-0023?

    CVE-2009-0023 is a heap buffer underwrite flaw that could allow arbitrary memory overwrites.

  • Can CVE-2009-0023 be exploited remotely?

    Yes, CVE-2009-0023 can be exploited remotely, allowing attackers to potentially take control of the vulnerable system.

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