CVE-2011-4028 - Improper Link Resolution Before File Access ('Link Following')

Severity

12%

Complexity

19%

Confidentiality

48%

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.

CVSS 2.0 Base Score 1.2. CVSS Attack Vector: local. CVSS Attack Complexity: high. CVSS Vector: (AV:L/AC:H/Au:N/C:P/I:N/A:N).

Overview

First reported 12 years ago

2012-07-03 19:55:00

Last updated 12 years ago

2012-07-17 04:00:00

Affected Software

X.Org xserver 1.11.0

1.11.0

X.Org xserver

References

http://cgit.freedesktop.org/xorg/xserver/commit/?id=6ba44b91e37622ef8c146d8f2ac92d708a18ed34

[xorg] 20111018 X.Org security advisory: xserver locking code issues

RHSA-2012:0939

46460

Vendor Advisory

49579

Vendor Advisory

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