What’s Vulnerable › Vulnerabilities
CVE-2016-4470
- Severity: medium (CVSS 5.5 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2016-06-27 · updated 2026-06-17
Description
The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.
Affected products
- Linux kernel: through 4.6.3
- Novell Suse Linux Enterprise Real Time Extension: 12.0-sp1
- Oracle Corporation Oracle Linux: 5.0, 6, 7
- Oracle Vm Server: 3.3, 3.4
- Red Hat Enterprise Linux: 6.0
- RedHat Enterprise Linux Desktop: 7.0
- RedHat Enterprise Linux For Real Time: 7.0
- RedHat Enterprise Linux Hpc Node: 7.0
- RedHat Enterprise Linux Hpc Node Eus: 7.0
- RedHat Enterprise Linux Server: 7.0
- RedHat Enterprise Linux Server Aus: 7.2
- RedHat Enterprise Linux Server Eus: 7.2
- RedHat Enterprise Linux Workstation: 7.0
- RedHat Enterprise Mrg: 2.0
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html
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