Vulnerability CVE-2013-6431
Published: 2013-12-09

Description:
The fib6_add function in net/ipv6/ip6_fib.c in the Linux kernel before 3.11.5 does not properly implement error-code encoding, which allows local users to cause a denial of service (NULL pointer dereference and system crash) by leveraging the CAP_NET_ADMIN capability for an IPv6 SIOCADDRT ioctl call.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Linux Kernel net/fib fib6_add potential NULL pointer dereference
PJP
08.12.2013

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.7/10
6.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Linux kernel 

 References:
https://github.com/torvalds/linux/commit/ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2
http://www.openwall.com/lists/oss-security/2013/12/06/5
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2
https://bugzilla.redhat.com/show_bug.cgi?id=1039054
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.5
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