Vulnerability identifier: #VU67971

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-42012

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
dbus
Universal components / Libraries / Libraries used by multiple products

Vendor: Freedesktop.org

Description

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

The vulnerability exists due to a use-after-free error caused by a message in non-native endianness with out-of-band Unix file descriptors. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

dbus: 1.3.0 - 1.3.1, 1.4.0 - 1.4.26, 1.5.0 - 1.5.12, 1.6.0 - 1.6.30, 1.7.0 - 1.7.10, 1.8.0 - 1.8.22, 1.9.0 - 1.9.20, 1.10.0 - 1.15.0

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External links
http://seclists.org/oss-sec/2022/q4/7
http://gitlab.freedesktop.org/dbus/dbus/-/commit/236f16e444e88a984cf12b09225e0f8efa6c5b44

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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.