CVE-2017-6346

Name: CVE-2017-6346
Creator: NVD / NIST
Published: 2017-03-01T20:59:00.41+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2017-6346 is a high-severity vulnerability rated 7/10 on the CVSS scale. Race condition in net/packet/af_packet.c in the Linux kernel before 4.9.13 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that makes PACKET_FANOUT setsockopt system calls.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

Race condition in net/packet/af_packet.c in the Linux kernel before 4.9.13 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that makes PACKET_FANOUT setsockopt system calls.

Metrics

CVSS 3.1

7/10

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

EPSS Probability

0.30%

21.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 3.1, < 3.2.87
Linux	Linux Kernel	>= 3.3, < 3.10.106
Linux	Linux Kernel	>= 3.11, < 3.12.71
Linux	Linux Kernel	>= 3.13, < 3.16.42
Linux	Linux Kernel	>= 3.17, < 4.1.49
Linux	Linux Kernel	>= 4.2, < 4.4.52
Linux	Linux Kernel	>= 4.5, < 4.9.13

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d199fab63c11998a602205f7ee7ff7c05c97164bPatch, Vendor Advisory
http://www.debian.org/security/2017/dsa-3804Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.13Patch, Release Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/02/28/6Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/96508Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/d199fab63c11998a602205f7ee7ff7c05c97164bPatch, Vendor Advisory
https://source.android.com/security/bulletin/2017-09-01Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d199fab63c11998a602205f7ee7ff7c05c97164bPatch, Vendor Advisory
http://www.debian.org/security/2017/dsa-3804Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.13Patch, Release Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/02/28/6Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/96508Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/d199fab63c11998a602205f7ee7ff7c05c97164bPatch, Vendor Advisory
https://source.android.com/security/bulletin/2017-09-01Third Party Advisory

Timeline

Published: Mar 1, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-6346?

How severe is CVE-2017-6346?

CVE-2017-6346 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2017-6346?

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-2017-6346?

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

Scan your code now

Source: NVD / NIST