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Alpine Linux: screen is setuid-root

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Alpine Linux: screen is setuid-root

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/27/2014
Created
07/25/2018
Added
08/30/2017
Modified
09/22/2017

Description

The Alpine package for GNU screen is installed setuid-root. This program is not designed to be secure and is almost certainly full of vulnerabilities, and the only use of suid-root installation is to support screen sessions shared between users, a rarely-used feature that most distributions disable. Some distros install screen setgid-utmp to update utmp, but since musl does not provide utmp, this is not necessary either. screen should simply be installed without any suid/sgid permissions.

Solution(s)

  • alpine-linux-upgrade-screen

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