medium
6.8
CWE
476 399
Advisory Published
CVE Published
Updated

CVE-2010-4539: Null Pointer Dereference

First published: Wed Jan 05 2011(Updated: )

A NULL pointer dereference flaw was found in the way mod_dav_svn, Apache httpd module for Subversion server, processed certain requests to display collection of Subversion repositories, available on particular host, when listing of repositories (SVNListParentPath directive) was enabled. A remote user could use this flaw to cause denial of service (particular httpd thread crash). References: [1] <a href="http://svn.apache.org/repos/asf/subversion/tags/1.6.15/CHANGES">http://svn.apache.org/repos/asf/subversion/tags/1.6.15/CHANGES</a> Upstream changeset: [2] <a href="http://svn.apache.org/viewvc?view=revision&amp;revision=1033166">http://svn.apache.org/viewvc?view=revision&amp;revision=1033166</a> Public PoC: [3] <a href="http://svn.haxx.se/users/archive-2010-11/0084.shtml">http://svn.haxx.se/users/archive-2010-11/0084.shtml</a> Flaw exploitation note: ----------------------- This flaw to be successfully exploited requires the "SVNListParentPath" directive / listing of repositories to be enabled. This feature is turned off by default in versions of subversion package, as shipped with Red Hat Enterprise Linux 5 and 6, which prevents occurrence / exploitation of this flaw.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Subversion=1.2.0
Subversion=1.0.4
Subversion=1.6.10
Subversion=0.22.0
Subversion=1.0.8
Subversion=1.4.5
Subversion=1.0.2
Subversion=1.1.2
Subversion=0.26.0
Subversion=0.10.1
Subversion=0.15
Subversion=1.0.9
Subversion=1.4.2
Subversion=0.37.0
Subversion=m2
Subversion=1.6.2
Subversion=0.9
Subversion=0.7
Subversion=0.19.0
Subversion=0.22.2
Subversion=0.12.0
Subversion=1.5.5
Subversion=1.6.5
Subversion=0.13.1
Subversion=1.1.1
Subversion=0.19.1
Subversion=1.5.3
Subversion=1.2.3
Subversion=0.20.0
Subversion=1.4.0
Subversion=0.14.5
Subversion=0.24.0
Subversion=1.4.4
Subversion=1.5.7
Subversion=0.21.0
Subversion=0.14.0
Subversion=0.17.0
Subversion=1.4.6
Subversion=1.3.1
Subversion=0.14.3
Subversion=1.6.3
Subversion=1.6.8
Subversion=0.18.1
Subversion=0.35.0
Subversion=0.30.0
Subversion=0.18.0
Subversion=1.6.13
Subversion=0.17.1
Subversion=1.0.3
Subversion=0.28.0
Subversion=0.33.1
Subversion=0.27.0
Subversion=0.10.0
Subversion=1.6.0
Subversion=1.1.4
Subversion=1.5.8
Subversion=0.10.2
Subversion=1.5.2
Subversion=0.25.0
Subversion<=1.6.14
Subversion=1.0.6
Subversion=1.6.7
Subversion=1.0.1
Subversion=0.36.0
Subversion=1.3.2
Subversion=1.6.12
Subversion=0.33.0
Subversion=0.24.1
Subversion=0.6
Subversion=0.14.2
Subversion=1.0.5
Subversion=1.6.1
Subversion=0.16
Subversion=0.24.2
Subversion=1.6.4
Subversion=1.2.1
Subversion=0.28.1
Subversion=0.11.1
Subversion=m1
Subversion=0.13.0
Subversion=0.28.2
Subversion=0.22.1
Subversion=1.4.3
Subversion=0.16.1
Subversion=0.23.0
Subversion=1.5.4
Subversion=1.3.0
Subversion=0.34.0
Subversion=0.13.2
Subversion=0.35.1
Subversion=m4\/m5
Subversion=1.6.11
Subversion=0.32.1
Subversion=1.1.3
Subversion=1.2.2
Subversion=1.1.0
Subversion=1.5.1
Subversion=0.8
Subversion=1.5.6
Subversion=1.0.7
Subversion=1.5.0
Subversion=0.31.0
Subversion=1.0.0
Subversion=1.6.6
Subversion=1.6.9
Subversion=0.14.1
Subversion=0.29.0
Subversion=1.4.1
Subversion=m3
Subversion=0.14.4
Subversion=0.20.1

Remedy

http://openwall.com/lists/oss-security/2011/01/02/1

Remedy

http://openwall.com/lists/oss-security/2011/01/04/10

Remedy

http://openwall.com/lists/oss-security/2011/01/04/8

Remedy

http://openwall.com/lists/oss-security/2011/01/05/4

Remedy

http://svn.apache.org/viewvc?view=revision&revision=1033166

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=667407

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2010-4539?

    CVE-2010-4539 has a severity rating of medium due to the potential for remote code execution via NULL pointer dereference.

  • How do I fix CVE-2010-4539?

    To fix CVE-2010-4539, update your Apache Subversion installation to version 1.6.14 or later.

  • What software versions are affected by CVE-2010-4539?

    CVE-2010-4539 affects multiple versions of Apache Subversion, including 0.7.0 up to 1.6.14.

  • Can CVE-2010-4539 be exploited remotely?

    Yes, CVE-2010-4539 can be exploited remotely under certain conditions where SVNListParentPath is enabled.

  • What type of vulnerability is CVE-2010-4539?

    CVE-2010-4539 is classified as a NULL pointer dereference vulnerability.

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