CVE-2012-6139: Null Pointer Dereference
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.
Affected Software
Remediation
Patch Available
Patch Available
Event History
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.