CVE-2013-4125

Severity: medium (CVSS 5.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-07-15 · updated 2026-06-16
Weakness: CWE-399

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.

Affected products

Linux kernel: through 3.10.1; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+239)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=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
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=307f2fb95e9b96b3577916e73d92e104f8f26494
http://lists.fedoraproject.org/pipermail/package-announce/2013-July/112454.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-July/112619.html

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