Vulnerability CVE-2014-9715
Published: 2015-05-27

Description:
include/net/netfilter/nf_conntrack_extend.h in the netfilter subsystem in the Linux kernel before 3.14.5 uses an insufficiently large data type for certain extension data, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via outbound network traffic that triggers extension loading, as demonstrated by configuring a PPTP tunnel in a NAT environment.

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=223b02d923ecd7c84cf9780bb3686f455d279279
http://marc.info/?l=netfilter-devel&m=140112364215200&w=2
http://rhn.redhat.com/errata/RHSA-2015-1534.html
http://rhn.redhat.com/errata/RHSA-2015-1564.html
http://www.debian.org/security/2015/dsa-3237
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5
http://www.openwall.com/lists/oss-security/2015/04/08/1
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.securityfocus.com/bid/73953
http://www.securitytracker.com/id/1032415
https://bugzilla.redhat.com/show_bug.cgi?id=1208684
https://github.com/torvalds/linux/commit/223b02d923ecd7c84cf9780bb3686f455d279279
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