CVE-2013-4125 Denial of service in n/a

What is CVE-2013-4125?

CVE-2013-4125 is a medium-severity denial of service vulnerability in Linux kernel, published on 15 Jul 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-399

Which versions are affected by CVE-2013-4125?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2013-4125?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2013-4125 being exploited?

There is no known exploitation of CVE-2013-4125 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CVE-2013-4141, DEBIAN-CVE-2013-4125, GHSA-q98v-4qrj-cxm4.