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CVE-2020-16123

Status Candidate

Overview

An Ubuntu-specific patch in PulseAudio created a race condition where the snap policy module would fail to identify a client connection from a snap as coming from a snap if SCM_CREDENTIALS were missing, allowing the snap to connect to PulseAudio without proper confinement. This could be exploited by an attacker to expose sensitive information. Fixed in 1:13.99.3-1ubuntu2, 1:13.99.2-1ubuntu2.1, 1:13.99.1-1ubuntu3.8, 1:11.1-1ubuntu7.11, and 1:8.0-0ubuntu3.15.

Related Files

Ubuntu Security Notice USN-4640-1
Posted Nov 24, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4640-1 - James Henstridge discovered that an Ubuntu-specific patch caused PulseAudio to incorrectly handle snap client connections. An attacker could possibly use this to expose sensitive information.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2020-16123
SHA-256 | 5f384fec92507bfd6ba02cc4c667a7ae9de98134147b08fe2d9c964d8a8cbf09
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