CVE-2014-9715

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.

4.9

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 0.04%

Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com

Affected: n/a n/a

References

Link	Tags
http://www.securityfocus.com/bid/73953	vdb entry
https://github.com/torvalds/linux/commit/223b02d923ecd7c84cf9780bb3686f455d279279
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5
http://marc.info/?l=netfilter-devel&m=140112364215200&w=2	mailing list
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.openwall.com/lists/oss-security/2015/04/08/1	mailing list
http://www.debian.org/security/2015/dsa-3237	vendor advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=223b02d923ecd7c84cf9780bb3686f455d279279
http://www.securitytracker.com/id/1032415	vdb entry
http://rhn.redhat.com/errata/RHSA-2015-1534.html	vendor advisory
http://rhn.redhat.com/errata/RHSA-2015-1564.html	vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1208684

Frequently Asked Questions

What is the severity of CVE-2014-9715?: CVE-2014-9715 has been scored as a medium severity vulnerability.
How to fix CVE-2014-9715?: To fix CVE-2014-9715, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-9715 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2014-9715 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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