An integer overflow leading to heap-based buffer overflow was found in the _XcursorFileHeaderCreate() function of libXcursor a simple library designed to help locate and load cursors. If an X client read a malicious user-specified config file, when connecting to an X server, it could result in arbitrary code execution with the privileges of the user running the X client process.
Public via: http://www.openwall.com/lists/oss-security/2013/05/23/3
Created libXcursor tracking bugs for this issue Affects: fedora-all [bug 966820]
libXcursor-1.1.13-5.20130524git8f677eaea.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
libXcursor-1.1.13-5.20130524git8f677eaea.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.
This issue affects the version of libXcursor as shipped with Red Hat Enterprise Linux 5 and 6.
Statement: This issue affects the libXcursor package in Red Hat Enterprise Linux 5. Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not planned to be fixed in Red Hat Enterprise Linux 5 as it is now in Production 3 Phase of the support and maintenance life cycle: https://access.redhat.com/support/policy/updates/errata/
External References: http://www.x.org/wiki/Development/Security/Advisory-2013-05-23
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2014:1436 https://rhn.redhat.com/errata/RHSA-2014-1436.html