Multiple Array index errors leading to heap-based buffer OOB write flaws were found in the libXxf86vm, X.Org X11 libXxf86vm runtime library. When a X client is connected to a malcicious X server , (modified to return invalid values), it can cause arbirary code execution with the privileges of the user running the X client.
Affected functions: XF86VidModeGetGammaRamp()
Created libXxf86vm tracking bugs for this issue
Affects: fedora-all [bug 966826]
libXxf86vm-1.1.2-5.20130524git4c4123441.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
libXxf86vm-1.1.2-5.20130524git4c4123441.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 libXxf86vm as shipped with Red Hat Enterprise Linux 5 and 6.
This issue affects the libXxf86vm 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/
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