CVE-2015-8543 Null dereference in n/a

What is CVE-2015-8543?

CVE-2015-8543 is a high-severity vulnerability in Linux kernel, published on 28 Dec 2015. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application.

Which versions are affected by CVE-2015-8543?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2015-8543?

Apply the vendor's patch.

Is CVE-2015-8543 being exploited?

There is no known exploitation of CVE-2015-8543 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

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-2015-8543, GHSA-p6pq-jvr9-q69p, MGASA-2016-0281, UBUNTU-CVE-2015-8543.