Main Vulnerability Database Vulnerabilities #VU59357

OS Command Injection in IBM AIX - CVE-2021-38991

Published: January 10, 2022

Vulnerability identifier: #VU59357

CSH Severity: Low

CVSS v4: 8.5 [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]

CVE-ID: CVE-2021-38991

CWE-ID: CWE-78

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to improper input validation in the lscore command. A local user can pass specially crafted data to the the lscore command and execute arbitrary code with elevated privileges.

Affected software

IBM AIX
IBM VIOS

How to mitigate CVE-2021-38991

Install updates from vendor's website.

External References

http://aix.software.ibm.com/aix/efixes/security/lscore_advisory.asc

Related Security Bulletins