CVE-2017-6347

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

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.

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-125

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=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

Timeline

Published: Mar 1, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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