|Date: (C)2012-07-03 (M)2015-12-16|
|CVSS Score: 1.9||Access Vector: LOCAL|
|Exploitability Subscore: 3.4||Access Complexity: MEDIUM|
|Impact Subscore: 2.9||Authentication: NONE|
| ||Confidentiality: PARTIAL|
| ||Integrity: NONE|
| ||Availability: NONE|
The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arbitrary files to 444, read those files, and possibly cause a denial of service (removed execution permission) via a symlink attack on a temporary lock file.