Use-after-free error in Linux kernel - CVE-2018-5344

 

Use-after-free error in Linux kernel - CVE-2018-5344

Published: February 26, 2018


Vulnerability identifier: #VU10725
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-5344
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local attacker to cause a DoS condition on the target system.

The weakness exists in the drivers/block/loop.c mishandles lo_release serialization due to use-after-free error. A local attacker can trigger memory corruption and cause the service to crash or execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

How to mitigate CVE-2018-5344

Install update from vendor's website.

Sources