CVE-2014-0038

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 35.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-02-06 · updated 2026-06-17
Weakness: CWE-20

Description

The compat_sys_recvmmsg function in net/compat.c in the Linux kernel before 3.13.2, when CONFIG_X86_X32 is enabled, allows local users to gain privileges via a recvmmsg system call with a crafted timeout pointer parameter.

Affected products

Linux kernel: from 3.4 before 3.4.79; from 3.5 before 3.10.29; from 3.11 before 3.12.10; from 3.13 before 3.13.2 — fixed in 3.10.29, 3.12.10, 3.13.2, 3.4.79
Opensuse: 12.3

How to fix

Upgrade to a fixed version: Linux kernel 3.10.29, 3.12.10, 3.13.2, 3.4.79. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2def2ef2ae5f3990aabdbe8a755911902707d268
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html
http://pastebin.com/raw.php?i=DH3Lbg54
http://secunia.com/advisories/56669
http://www.exploit-db.com/exploits/31346
http://www.exploit-db.com/exploits/31347
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.2
http://www.mandriva.com/security/advisories?name=MDVSA-2014:038
http://www.openwall.com/lists/oss-security/2014/01/31/2
http://www.securityfocus.com/bid/65255
http://www.ubuntu.com/usn/USN-2094-1

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