CVE-2013-4312

Severity: medium (CVSS 6.2 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: 2016-02-08 · updated 2026-06-16
Weakness: CWE-119

Description

The Linux kernel before 4.4.1 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by sending each descriptor over a UNIX socket before closing it, related to net/unix/af_unix.c and net/unix/garbage.c.

Affected products

Linux kernel: through 4.4
Oracle Corporation Oracle Linux: 5.0, 6, 7

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=712f4aad406bb1ed67f3f98d04c044191f0ff593
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.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/2016/dsa-3448
http://www.debian.org/security/2016/dsa-3503
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.securityfocus.com/bid/82986
http://www.ubuntu.com/usn/USN-2929-1

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