vulnerability

Amazon Linux 2023: CVE-2023-24626: Low priority package update for screen

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Apr 8, 2023
Added
Feb 17, 2025
Modified
Jul 9, 2025

Description

socket.c in GNU Screen through 4.9.0, when installed setuid or setgid (the default on platforms such as Arch Linux and FreeBSD), allows local users to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the target process.
A flaw was found in screen. This flaw allows local users to send a SIGHUP signal to any PID due to a missing signal sending permission check, potentially resulting in a denial of service or disruption of the target process.

Solutions

amazon-linux-2023-upgrade-screenamazon-linux-2023-upgrade-screen-debuginfoamazon-linux-2023-upgrade-screen-debugsource
Title
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