CVE-2013-4163

Public Exploit

Description

The ip6_append_data_mtu function in net/ipv6/ip6_output.c in the IPv6 implementation in the Linux kernel through 3.10.3 does not properly maintain information about whether the IPV6_MTU setsockopt option had been specified, which allows local users to cause a denial of service (BUG and system crash) via a crafted application that uses the UDP_CORK option in a setsockopt system call.

Category

4.7
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-1943-1 vendor advisory
http://www.openwall.com/lists/oss-security/2013/07/23/10 mailing list
http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html vendor advisory
http://www.ubuntu.com/usn/USN-1938-1 vendor advisory
http://www.securityfocus.com/bid/61412 vdb entry
http://www.ubuntu.com/usn/USN-1944-1 vendor advisory
http://www.ubuntu.com/usn/USN-1945-1 vendor advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=75a493e60ac4bbe2e977e7129d6d8cbb0dd236be
http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00004.html vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=987633
http://www.ubuntu.com/usn/USN-1947-1 vendor advisory
http://secunia.com/advisories/54148 third party advisory
http://www.ubuntu.com/usn/USN-1941-1 vendor advisory
http://www.ubuntu.com/usn/USN-1942-1 vendor advisory
https://github.com/torvalds/linux/commit/75a493e60ac4bbe2e977e7129d6d8cbb0dd236be patch exploit
http://www.ubuntu.com/usn/USN-1946-1 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-4163?
CVE-2013-4163 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4163?
To fix CVE-2013-4163, 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-2013-4163 being actively exploited in the wild?
It is possible that CVE-2013-4163 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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