Description
The sg_build_indirect function in drivers/scsi/sg.c in Linux kernel 2.6.28-rc1 through 2.6.31-rc8 uses an incorrect variable when accessing an array, which allows local users to cause a denial of service (kernel OOPS and NULL pointer dereference), as demonstrated by using xcdroast to duplicate a CD. NOTE: this is only exploitable by users who can open the cdrom device.
Metrics
CVSS 2.0 4.9/10
AV:L/AC:L/Au:N/C:N/I:N/A:CWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://lkml.org/lkml/2009/9/3/1Exploit
- http://lkml.org/lkml/2009/9/3/107Exploit
- http://secunia.com/advisories/37105
- http://www.openwall.com/lists/oss-security/2009/09/03/4Exploit
- http://www.ubuntu.com/usn/USN-852-1
- http://lkml.org/lkml/2009/9/3/1Exploit
- http://lkml.org/lkml/2009/9/3/107Exploit
- http://secunia.com/advisories/37105
- http://www.openwall.com/lists/oss-security/2009/09/03/4Exploit
- http://www.ubuntu.com/usn/USN-852-1
Timeline
- Published
- Sep 22, 2009
- Last modified
- Jun 16, 2026
- NVD status
- Modified