CVE-2023-24626 Affecting screen package, versions <4.6.2-1ubuntu1.1+esm1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-UBUNTU1804-SCREEN-5417105
  • published10 Apr 2023
  • disclosed8 Apr 2023

Introduced: 8 Apr 2023

CVE-2023-24626  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 screen to version 4.6.2-1ubuntu1.1+esm1 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 Ubuntu. See How to fix? for Ubuntu:18.04 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