CVE-2021-38991 Privilege escalation in AIX

High 8.4 Published Updated

A local non-privileged user can exploit the lscore command in IBM AIX to execute arbitrary code, potentially escalating privileges.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-38991?

CVE-2021-38991 is a high-severity vulnerability in Ibm Aix, published on 11 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM AIX 7.0, 7.1, 7.2, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the lscore command which could lead to code execution. IBM X-Force ID: 212953.

Which versions are affected by CVE-2021-38991?

It affects 2 products.

Products include Ibm Aix, Ibm Vios.

How do I fix CVE-2021-38991?

No fix has been published for CVE-2021-38991 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-38991 being exploited?

There is no known exploitation of CVE-2021-38991 in the wild and no public exploit code.

All Ibm Aix vulnerabilities

Sources

Also known as GHSA-pch6-29g3-h3g3.

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