What’s Vulnerable › Vulnerabilities

CVE-2015-8543

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-12-28 · updated 2026-06-17

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.

Affected products

• Linux kernel: before 3.2.75; from 3.3 before 3.4.111; from 3.5 before 3.10.95; from 3.11 before 3.12.52; from 3.13 before 3.14.59; from 3.15 before 3.16.35 — fixed in 3.10.95, 3.12.52, 3.14.59, 3.16.35, 3.18.26, 3.2.75

How to fix

Upgrade to a fixed version: Linux kernel 3.10.95, 3.12.52, 3.14.59, 3.16.35. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79462ad02e861803b3840cc782248c7359451cd9
• http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
• http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
• http://rhn.redhat.com/errata/RHSA-2016-0855.html
• http://rhn.redhat.com/errata/RHSA-2016-2574.html
• http://rhn.redhat.com/errata/RHSA-2016-2584.html
• http://www.debian.org/security/2015/dsa-3426
• http://www.debian.org/security/2016/dsa-3434
• http://www.openwall.com/lists/oss-security/2015/12/09/5
• http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
• http://www.securityfocus.com/bid/79698

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