Multiple integer overflows leading to heap-based buffer overflows were found in the libXxf86dga, an X.Org X11 libXxf86dga runtime library. When a X client is connected to a malicious 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: XDGAQueryModes(), XDGASetMode()
Created libXxf86dga tracking bugs for this issue
Affects: fedora-all [bug 966818]
libXxf86dga-1.1.3-5.20130524gita8dc6be32.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
This issue affects the version of libXxf86dga as shipped with Red Hat Enterprise Linux 5 and 6.
This issue affects the libXxf86dga 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/
libXxf86dga-1.1.3-5.20130524gita8dc6be32.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 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