Privilege escalation in procps

1) Out-of-bounds write

EUVDB-ID: #VU79561

Risk: High

CVSSv4.0: 5.9 [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:Amber]

CVE-ID: CVE-2023-4016

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing untrusted input. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

procps: 3.3.0 - 4.0.3

CPE2.3

• cpe:2.3:a:procps-ng:procps:3.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:procps-ng:procps:3.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:procps-ng:procps:3.3.2:*:*:*:*:*:*:*

External links

https://bugzilla.redhat.com/show_bug.cgi?id=2230186
https://bugzilla.redhat.com/show_bug.cgi?id=2228494
https://gitlab.com/procps-ng/procps/-/issues/297#note_1496932093
https://www.freelists.org/post/procps/ps-buffer-overflow-CVE-20234016

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.