#VU78954 Permissions, Privileges, and Access Controls in pipewire

Vulnerability identifier: #VU78954

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
pipewire
Client/Desktop applications / Multimedia software

Vendor: pipewire.org

Description

The vulnerability allows a local application to bypass implemented security restrictions.

The vulnerability exists due to improperly imposed security restrictions in pipewire/impl-link.c. A local application with permissions to access one stream can also access other streams.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

pipewire: before 0.3.75

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External links
https://gitlab.freedesktop.org/pipewire/pipewire/-/commit/9e0932b319203479cb6837b41d4cb7e388063eb3
https://gitlab.freedesktop.org/pipewire/wireplumber/-/issues/218

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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.