CVE-2023-24626

MEDIUM

GNU Screen <4.9.0 - DoS

Title source: llm

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.

Exploits (1)

exploitdb WORKING POC

by Manuel Andreas · pythonlocallinux

https://www.exploit-db.com/exploits/51252

View Code ZIP pw:eip

References (4)

[Mailing List, Patch] https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7

[Permissions Required] https://savannah.gnu.org/bugs/?63195

[Third Party Advisory, VDB Entry] https://www.exploit-db.com/exploits/51252

[Vendor Advisory] https://security.netapp.com/advisory/ntap-20250509-0003/

Scores

CVSS v3 6.5

EPSS 0.0006

EPSS Percentile 18.1%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Details

CWE

CWE-732

Status published

Products (1)

gnu/screen < 4.9.0

Published Apr 08, 2023

Tracked Since Feb 18, 2026