CVE-2017-13686 Null dereference in n/a

What is CVE-2017-13686?

CVE-2017-13686 is a high-severity vulnerability in Linux kernel, published on 24 Aug 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

net/ipv4/route.c in the Linux kernel 4.13-rc1 through 4.13-rc6 is too late to check for a NULL fi field when RTM_F_FIB_MATCH is set, which allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via crafted system calls. NOTE: this does not affect any stable release.

Weakness: CWE-476

Which versions are affected by CVE-2017-13686?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-13686?

No fix has been published for CVE-2017-13686 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-13686 being exploited?

There is no known exploitation of CVE-2017-13686 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 GHSA-8348-vf2q-44xc.