CVE-2010-3880

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-12-10 · updated 2026-06-16
Weakness: CWE-835

Description

net/ipv4/inet_diag.c in the Linux kernel before 2.6.37-rc2 does not properly audit INET_DIAG bytecode, which allows local users to cause a denial of service (kernel infinite loop) via crafted INET_DIAG_REQ_BYTECODE instructions in a netlink message that contains multiple attribute elements, as demonstrated by INET_DIAG_BC_JMP instructions.

Affected products

Debian Linux: 5.0
Linux kernel: before 2.6.37; 2.6.37, 2.6.37-rc1 — fixed in 2.6.37

How to fix

Upgrade to a fixed version: Linux kernel 2.6.37. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=22e76c849d505d87c5ecf3d3e6742a65f0ff4860
http://openwall.com/lists/oss-security/2010/11/04/9
http://openwall.com/lists/oss-security/2010/11/05/3
http://secunia.com/advisories/42126
http://secunia.com/advisories/42789
http://secunia.com/advisories/42890
http://secunia.com/advisories/46397
http://www.debian.org/security/2010/dsa-2126
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2
http://www.redhat.com/support/errata/RHSA-2010-0958.html
http://www.redhat.com/support/errata/RHSA-2011-0004.html
http://www.redhat.com/support/errata/RHSA-2011-0007.html

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