CVE-2018-14619

2018-08-3000:00:00

ubuntu.com

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

Percentile

5.1%

JSON

A flaw was found in the crypto subsystem of the Linux kernel before version
kernel-4.15-rc4. The “null skcipher” was being dropped when each af_alg_ctx
was freed instead of when the aead_tfm was freed. This can cause the null
skcipher to be freed while it is still in use leading to a local user being
able to crash the system or possibly escalate privileges.