Vulnerability CVE-2014-3631
Published: 2014-09-28

Description:
The assoc_array_gc function in the associative-array implementation in lib/assoc_array.c in the Linux kernel before 3.16.3 does not properly implement garbage collection, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via multiple "keyctl newring" operations followed by a "keyctl timeout" operation.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Linux Kernel Associative Array Garbage Collection Crash PoC
Emeric Nasi
05.03.2015

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
Linux -> Linux kernel 

 References:
https://github.com/torvalds/linux/commit/95389b08d93d5c06ec63ab49bd732b0069b7c35e
https://bugzilla.redhat.com/show_bug.cgi?id=1140325
http://www.ubuntu.com/usn/USN-2379-1
http://www.ubuntu.com/usn/USN-2378-1
http://www.securityfocus.com/bid/70095
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3
http://www.exploit-db.com/exploits/36268
http://osvdb.org/show/osvdb/111298
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=95389b08d93d5c06ec63ab49bd732b0069b7c35e
Copyright 2024, cxsecurity.com

 

Back to Top