Vulnerability CVE-2009-1041
Published: 2009-03-26   Modified: 2012-02-13

Description:
The ktimer feature (sys/kern/kern_time.c) in FreeBSD 7.0, 7.1, and 7.2 allows local users to overwrite arbitrary kernel memory via an out-of-bounds timer value.

See advisories in our WLB2 database:
Topic
Author
Date
High
FreeBSD 7.0/7.1 (ktimer) Local Kernel Root Exploit
mu-b
28.03.2009

Type:

CWE-119

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

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Freebsd -> Freebsd 

 References:
http://xforce.iss.net/xforce/xfdb/49362
http://www.securitytracker.com/id?1021882
http://www.securityfocus.com/bid/34196
http://www.milw0rm.com/exploits/8261
http://security.freebsd.org/advisories/FreeBSD-SA-09:06.ktimer.asc
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