CVE-2017-16939

Public on 2018-05-24
Modified on 2019-01-25
Description
The Linux kernel is vulerable to a use-after-free flaw when Transformation User configuration interface(CONFIG_XFRM_USER) compile-time configuration were enabled. This vulnerability occurs while closing a xfrm netlink socket in xfrm_dump_policy_done. A user/process could abuse this flaw to potentially escalate their privileges on a system.
Severity
Important
CVSS v3 Base Score
8.1
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2018-05-24 18:14 ALAS2-2018-1023
Amazon Linux 1 kernel 2018-05-25 18:12 ALAS-2018-1023

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 6.2 AV:L/AC:H/Au:N/C:C/I:C/A:C
Amazon Linux CVSSv3 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD CVSSv2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C
NVD CVSSv3 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H