CVE-2012-6638

Name: CVE-2012-6638
Creator: NVD / NIST
Published: 2014-02-15T14:57:07.58+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.34%

Last modified Jun 16, 2026

CVE-2012-6638 is a vulnerability of currently unknown severity. The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.. EPSS estimates a 3.34% chance of exploitation in the next 30 days.

Description

The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.

Metrics

EPSS Probability

3.34%

87.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 3.0.38
Linux	Linux Kernel	>= 3.1, < 3.2.24

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fdf5af0daf8019cec2396cdef8fb042d80fe71fa
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=826702Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/fdf5af0daf8019cec2396cdef8fb042d80fe71faPatch, Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fdf5af0daf8019cec2396cdef8fb042d80fe71fa
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=826702Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/fdf5af0daf8019cec2396cdef8fb042d80fe71faPatch, Third Party Advisory

Timeline

Published: Feb 15, 2014
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-6638?

How severe is CVE-2012-6638?

Severity scoring for CVE-2012-6638 is pending analysis. The EPSS model estimates a 3.34% probability of exploitation in the next 30 days.

How do I fix CVE-2012-6638?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-6638?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST