CVE-2015-8215 Denial of service in n/a

What is CVE-2015-8215?

CVE-2015-8215 is a medium-severity denial of service vulnerability in Linux kernel, published on 16 Nov 2015. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel before 4.0 does not validate attempted changes to the MTU value, which allows context-dependent attackers to cause a denial of service (packet loss) via a value that is (1) smaller than the minimum compliant value or (2) larger than the MTU of an interface, as demonstrated by a Router Advertisement (RA) message that is not validated by a daemon, a different vulnerability than CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is limited to the NetworkManager product.

Weakness: CWE-20

Which versions are affected by CVE-2015-8215?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2015-8215?

Upgrade to a fixed version.

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-2015-8215 being exploited?

There is no known exploitation of CVE-2015-8215 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 DEBIAN-CVE-2015-8215, GHSA-2rqg-pj4m-7gvr, UBUNTU-CVE-2015-8215.