CVE-2017-6347

The ip_cmsg_recv_checksum function in net/ipv4/ip_sockglue.c in the Linux kernel before 4.10.1 has incorrect expectations about skb data layout, which allows local users to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted system calls, as demonstrated by use of the MSG_MORE flag in conjunction with loopback UDP transmission.

• CWE-125

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32Patch, Third Party Advisory
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.1Patch, Release Notes, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/02/28/5Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/96487Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=1427984Issue Tracking, Patch, Third Party Advisory, VDB Entry
• https://github.com/torvalds/linux/commit/ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32Patch, Third Party Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32Patch, Third Party Advisory
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.1Patch, Release Notes, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/02/28/5Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/96487Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=1427984Issue Tracking, Patch, Third Party Advisory, VDB Entry
• https://github.com/torvalds/linux/commit/ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32Patch, Third Party Advisory

Published

Mar 1, 2017

Last Modified

Jun 17, 2026

Status

Modified

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