CVE-2013-4125

Public Exploit

Description

The fib6_add_rt2node function in net/ipv6/ip6_fib.c in the IPv6 stack in the Linux kernel through 3.10.1 does not properly handle Router Advertisement (RA) messages in certain circumstances involving three routes that initially qualified for membership in an ECMP route set until a change occurred for one of the first two routes, which allows remote attackers to cause a denial of service (system crash) via a crafted sequence of messages.

Category

5.4
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.43% Top 25%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.fedoraproject.org/pipermail/package-announce/2013-July/112454.html vendor advisory
http://www.openwall.com/lists/oss-security/2013/07/15/4 mailing list
http://lists.fedoraproject.org/pipermail/package-announce/2013-July/112619.html vendor advisory
https://github.com/torvalds/linux/commit/307f2fb95e9b96b3577916e73d92e104f8f26494 patch exploit
http://www.securityfocus.com/bid/61166 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=984664
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=307f2fb95e9b96b3577916e73d92e104f8f26494
http://www.securitytracker.com/id/1028780 vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/85645 vdb entry

Frequently Asked Questions

What is the severity of CVE-2013-4125?
CVE-2013-4125 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4125?
To fix CVE-2013-4125, 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-2013-4125 being actively exploited in the wild?
It is possible that CVE-2013-4125 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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