Vulnerability identifier: #VU67969

Vulnerability risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-42010

CWE-ID: CWE-617

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 perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion in debug builds caused by a syntactically invalid type signature with incorrectly nested parentheses and curly brackets. A local user can perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

dbus: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11, 0.12, 0.13, 0.20, 0.21, 0.22, 0.23 - 0.23.4, 0.31 - 0.31.0, 0.32 - 0.32.0, 0.33 - 0.33.0, 0.34 - 0.34.0, 0.35 - 0.35.2, 0.36 - 0.36.2, 0.50, 0.60, 0.61, 0.62, 0.90, 0.91, 0.92, 0.93, 0.94, 0.95, 1.0 - 1.0.2, 1.1.0 - 1.15.0, 1.2.1 - 1.2.30, 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

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External links
http://seclists.org/oss-sec/2022/q4/7
http://gitlab.freedesktop.org/dbus/dbus/-/commit/9d07424e9011e3bbe535e83043d335f3093d2916

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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.