CVE-2013-4125

medium

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.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=307f2fb95e9b96b3577916e73d92e104f8f26494

http://lists.fedoraproject.org/pipermail/package-announce/2013-July/112454.html

http://lists.fedoraproject.org/pipermail/package-announce/2013-July/112619.html

http://www.openwall.com/lists/oss-security/2013/07/15/4

http://www.securityfocus.com/bid/61166

http://www.securitytracker.com/id/1028780

https://bugzilla.redhat.com/show_bug.cgi?id=984664

https://exchange.xforce.ibmcloud.com/vulnerabilities/85645

https://github.com/torvalds/linux/commit/307f2fb95e9b96b3577916e73d92e104f8f26494

Details

Source: MITRE

Published: 2013-07-15

Updated: 2017-08-29

Type: CWE-399

Risk Information

CVSS v2

Base Score: 5.4

Vector: AV:N/AC:H/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 4.9

Severity: MEDIUM