CVE-2015-1333

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-08-31 · updated 2026-06-17
Weakness: CWE-119

Description

Memory leak in the __key_link_end function in security/keys/keyring.c in the Linux kernel before 4.1.4 allows local users to cause a denial of service (memory consumption) via many add_key system calls that refer to existing keys.

Affected products

Linux kernel: through 4.1.3

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca4da5dd1f99fe9c59f1709fb43e818b18ad20e0
http://rhn.redhat.com/errata/RHSA-2015-1778.html
http://rhn.redhat.com/errata/RHSA-2015-1787.html
http://www.debian.org/security/2015/dsa-3329
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.4
http://www.openwall.com/lists/oss-security/2015/07/27/7
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/76050
http://www.ubuntu.com/usn/USN-2687-1
http://www.ubuntu.com/usn/USN-2688-1
http://www.ubuntu.com/usn/USN-2689-1
http://www.ubuntu.com/usn/USN-2690-1

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