CVE-2017-16939
Public on 2017-11-24
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
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2018-05-25 | ALAS-2018-1023 | Fixed |
| Amazon Linux 2 - Core | kernel | 2018-05-24 | ALAS2-2018-1023 | Fixed |
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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |