Vulnerability CVE-2012-1699
Published: 2012-12-21

Description:
The ProcSetEventMask function in difs/events.c in the xfs font server for X.Org X11R6 through X11R6.6 and XFree86 before 3.3.3 calls the SendErrToClient function with a mask value instead of a pointer, which allows local users to cause a denial of service (memory corruption and crash) or obtain potentially sensitive information from memory via a SetEventMask request that triggers an invalid pointer dereference.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.6/10
4.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
Partial
Affected software
Xfree86 -> Xfree86 
X -> X.org x11 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=842841
https://blogs.oracle.com/sunsecurity/entry/cve_2012_1699_denial_of
http://twitter.com/bsdaemon/status/228958599790071809
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:19369
http://marc.info/?l=bugtraq&m=135765511704334&w=2
http://marc.info/?l=bugtraq&m=135765511704334&w=2
http://lists.freedesktop.org/archives/xorg-announce/2012-July/002040.html
http://invisible-island.net/ansification/ansify-xfs-cve.html
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