Input validation error in IBM PowerVM Hypervisor

1) Input validation error

EUVDB-ID: #VU77543

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-30438

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to obtain sensitive information or execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input. A local user with access to a logical partition can perform an undetected violation of the isolation between logical partitions which could lead to data leakage or the execution of arbitrary code in other logical partitions on the same physical server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

PowerVM Hypervisor: before FW950.71

CPE2.3

• cpe:2.3:a:ibm_corporation:powervm_hypervisor:*:*:*:*:*:*:*:

External links

http://www.ibm.com/support/pages/node/6993021

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.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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