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CVE-2013-4125

5.4 · MEDIUM

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 involvi…

Published Jul 15, 2013linuxCWE-399EPSS 4.67%

Overview

CVE-2013-4125 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 15, 2013 and has a CVSS 2.0 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel0Affected

References

Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=307f2fb95e9b96b3577916e73d92e104f8f26494Reflists.fedoraproject.org/pipermail/package-announce/2013-July/112454.htmlReflists.fedoraproject.org/pipermail/package-announce/2013-July/112619.htmlRefwww.openwall.com/lists/oss-security/2013/07/15/4Refwww.securityfocus.com/bid/61166Refwww.securitytracker.com/id/1028780Refbugzilla.redhat.com/show_bug.cgi?id=984664Refexchange.xforce.ibmcloud.com/vulnerabilities/85645GitHubgithub.com/torvalds/linux/commit/307f2fb95e9b96b3577916e73d92e104f8f26494Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=307f2fb95e9b96b3577916e73d92e104f8f26494

How CyberStrike helps

Frequently asked questions

What is CVE-2013-4125?

CVE-2013-4125 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 15, 2013 and has a CVSS 2.0 base score of 5.4 (MEDIUM).

How severe is CVE-2013-4125?

This vulnerability has a CVSS 2.0 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-4125?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-4125?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-4125 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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