Denial of service in IBM AIX lpd

1) Input validation error

EUVDB-ID: #VU70386

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-43382

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the AIX lpd printer daemon. A local user can pass specially crafted input to the printer daemon and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IBM AIX: 7.1 - 7.3.0.1

CPE2.3

• cpe:2.3:o:ibm_corporation:ibm_aix:7.3.0.1:*:*:*:*:*:*:*
• cpe:2.3:o:ibm_corporation:ibm_aix:7.2.5.3:*:*:*:*:*:*:*
• cpe:2.3:o:ibm_corporation:ibm_aix:7.2.5.2:*:*:*:*:*:*:*

External links

http://aix.software.ibm.com/aix/efixes/security/lpd_advisory3.asc
http://www.ibm.com/support/pages/node/6848309

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.