openEuler 20.03 LTS SP1 update for util-linux

1) Input validation error

EUVDB-ID: #VU87906

Risk: Low

CVSSv3.1: 6.6 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2024-28085

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient validation of user-supplied arguments along with setgid tty permissions within the wall command. A local user can execute arbitrary commands with escalated privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

util-linux-help: before 2.35.2-13

libsmartcols: before 2.35.2-13

util-linux-debugsource: before 2.35.2-13

libuuid: before 2.35.2-13

util-linux-devel: before 2.35.2-13

libfdisk: before 2.35.2-13

libmount: before 2.35.2-13

uuidd: before 2.35.2-13

libblkid: before 2.35.2-13

util-linux-debuginfo: before 2.35.2-13

util-linux-user: before 2.35.2-13

python-libmount: before 2.35.2-13

util-linux: before 2.35.2-13

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1383

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. However, proof of concept for this vulnerability is available.