medium
5
CWE
476
Advisory Published
Updated

CVE-2012-6139: Null Pointer Dereference

First published: Fri Apr 12 2013(Updated: )

libxslt before 1.1.28 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an (1) empty match attribute in a XSL key to the xsltAddKey function in keys.c or (2) uninitialized variable to the xsltDocumentFunction function in functions.c.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
libxslt<=1.1.27
libxslt=0.0.1
libxslt=0.1.0
libxslt=0.2.0
libxslt=0.3.0
libxslt=0.4.0
libxslt=0.5.0
libxslt=0.6.0
libxslt=0.7.0
libxslt=0.8.0
libxslt=0.9.0
libxslt=0.10.0
libxslt=0.11.0
libxslt=0.12.0
libxslt=0.13.0
libxslt=0.14.0
libxslt=1.0.0
libxslt=1.0.1
libxslt=1.0.2
libxslt=1.0.3
libxslt=1.0.4
libxslt=1.0.5
libxslt=1.0.6
libxslt=1.0.7
libxslt=1.0.8
libxslt=1.0.9
libxslt=1.0.10
libxslt=1.0.11
libxslt=1.0.12
libxslt=1.0.13
libxslt=1.0.14
libxslt=1.0.15
libxslt=1.0.16
libxslt=1.0.17
libxslt=1.0.18
libxslt=1.0.19
libxslt=1.0.20
libxslt=1.0.21
libxslt=1.0.22
libxslt=1.0.23
libxslt=1.0.24
libxslt=1.0.25
libxslt=1.0.26
libxslt=1.0.27
libxslt=1.0.28
libxslt=1.0.29
libxslt=1.0.30
libxslt=1.0.31
libxslt=1.0.32
libxslt=1.0.33
libxslt=1.1.0
libxslt=1.1.1
libxslt=1.1.2
libxslt=1.1.3
libxslt=1.1.4
libxslt=1.1.5
libxslt=1.1.6
libxslt=1.1.7
libxslt=1.1.8
libxslt=1.1.9
libxslt=1.1.10
libxslt=1.1.11
libxslt=1.1.12
libxslt=1.1.13
libxslt=1.1.14
libxslt=1.1.15
libxslt=1.1.16
libxslt=1.1.17
libxslt=1.1.18
libxslt=1.1.19
libxslt=1.1.20
libxslt=1.1.21
libxslt=1.1.22
libxslt=1.1.23
libxslt=1.1.24
libxslt=1.1.25
libxslt=1.1.26
SUSE Linux=11.4
SUSE Linux=12.1
SUSE Linux=12.2
SUSE Linux=12.3

Remedy

https://bugzilla.gnome.org/show_bug.cgi?id=685328

Remedy

https://bugzilla.gnome.org/show_bug.cgi?id=685330

Remedy

https://git.gnome.org/browse/libxslt/commit/?id=6c99c519d97e5fcbec7a9537d190efb442e4e833

Remedy

https://git.gnome.org/browse/libxslt/commit/?id=dc11b6b379a882418093ecc8adf11f6166682e8d

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-6139?

    CVE-2012-6139 has been classified as a medium severity vulnerability due to its potential to cause a denial of service through application crashes.

  • How do I fix CVE-2012-6139?

    To remediate CVE-2012-6139, upgrade to libxslt version 1.1.28 or later, where the vulnerability has been addressed.

  • What types of attacks can CVE-2012-6139 enable?

    CVE-2012-6139 can enable remote attackers to cause a denial of service by triggering a NULL pointer dereference in the libxslt application.

  • Which versions of libxslt are affected by CVE-2012-6139?

    CVE-2012-6139 affects libxslt versions prior to 1.1.28, including all versions in the 1.0.x and early 1.1.x series.

  • How can I verify if I am vulnerable to CVE-2012-6139?

    To check for vulnerability to CVE-2012-6139, verify the installed version of libxslt and confirm it is below 1.1.28.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203