CVE-2017-6346

MEDIUM

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.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d199fab63c11998a602205f7ee7ff7c05c97164b

http://www.debian.org/security/2017/dsa-3804

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.13

http://www.openwall.com/lists/oss-security/2017/02/28/6

http://www.securityfocus.com/bid/96508

https://github.com/torvalds/linux/commit/d199fab63c11998a602205f7ee7ff7c05c97164b

https://source.android.com/security/bulletin/2017-09-01

Details

Source: MITRE

Published: 2017-03-01

Updated: 2017-11-04

Type: CWE-362

Risk Information

CVSS v2.0

Base Score: 6.9

Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3.0

Base Score: 7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1

Severity: HIGH