Slackware Linux update for kernel

1) Use-after-free

EUVDB-ID: #VU14817

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-17182

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in vmacache_flush_all() function in mm/vmacache.c file. A local user can trigger the use-after-free error via certain thread creation, map, unmap, invalidation, and dereference operations and execute arbitrary code on the system with elevated privileges.

Mitigation

Update the affected package kernel.

Vulnerable software versions

Slackware Linux: 14.2

External links

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackware-security.693090

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.