CVE-2013-6431

Public Exploit

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.

Category

4.7
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory opensuse.org Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.5
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2
https://bugzilla.redhat.com/show_bug.cgi?id=1039054
http://www.openwall.com/lists/oss-security/2013/12/06/5 mailing list patch
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html vendor advisory
https://github.com/torvalds/linux/commit/ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2 patch exploit
http://rhn.redhat.com/errata/RHSA-2014-0100.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-6431?
CVE-2013-6431 has been scored as a medium severity vulnerability.
How to fix CVE-2013-6431?
To fix CVE-2013-6431, 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-2013-6431 being actively exploited in the wild?
It is possible that CVE-2013-6431 is being exploited or will be exploited in a near future based on public information. 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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