CVE-2012-6704

HighCVSS 7.8/10Last modified Jun 16, 2026

Description

The sock_setsockopt function in net/core/sock.c in the Linux kernel before 3.5 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUF or (2) SO_RCVBUF option.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82981930125abfd39d7c8378a9cfdf5e1be2002bPatch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/03/1Mailing List, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/95135Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1402024Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/82981930125abfd39d7c8378a9cfdf5e1be2002bPatch, Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82981930125abfd39d7c8378a9cfdf5e1be2002bPatch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/03/1Mailing List, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/95135Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1402024Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/82981930125abfd39d7c8378a9cfdf5e1be2002bPatch, Third Party Advisory

Timeline

Published: Dec 28, 2016
Last modified: Jun 16, 2026
NVD status: Modified

Related CVEs from 2012

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