CVE-2023-24626 Affecting screen package, versions <4.9.0-r1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

Exploit Maturity
Mature
EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-ALPINE316-SCREEN-5510609
  • published10 May 2023
  • disclosed8 Apr 2023

Introduced: 8 Apr 2023

CVE-2023-24626  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 screen to version 4.9.0-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream screen package and not the screen package as distributed by Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

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.

CVSS Scores

version 3.1