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Alpine Linux: CVE-2019-6133: polkit Temporary auth hijacking via PID reuse and non-atomic fork

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Alpine Linux: CVE-2019-6133: polkit Temporary auth hijacking via PID reuse and non-atomic fork

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
01/11/2019
Created
12/28/2019
Added
12/27/2019
Modified
12/27/2019

Description

In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed because fork() is not atomic, and therefore authorization decisions are improperly cached. This is related to lack of uid checking in polkitbackend/polkitbackendinteractiveauthority.c.

Solution(s)

  • alpine-linux-upgrade-polkit

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