X.org X server 1.13.3 and earlier, when not run as root, allows local users to cause a denial of service (crash) or possibly gain privileges via vectors involving cached xkb files.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2013-1056 from the MITRE CVE dictionary dictionary and NIST NVD.
Not vulnerable. This issue did not affect the versions of xorg-x11-server as shipped with Red Hat Enterprise Linux 5 and 6 as our products did not include the vulnerable patch.
The vulnerability was introduced due to a Ubuntu specific patch, which we never used with the xorg-x11-server we ship with our products.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 1.9 |
|---|---|
| Base Metrics | AV:L/AC:M/Au:N/C:N/I:N/A:P |
| Access Vector | Local |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | xorg-x11-server | Not affected |
| Red Hat Enterprise Linux 6 | xorg-x11-server | Not affected |
| Red Hat Enterprise Linux 5 | xorg-x11-server | Not affected |
Vulmon