CVE-2012-6704

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.

• CWE-119

• 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

Published

Dec 28, 2016

Last Modified

Jun 16, 2026

Status

Modified

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