CVE-2025-46805

Screen has a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root

State: Published
Severity: 5.7 Medium
Published: May 26, 2025
Updated: May 27, 2025
Reserved: Apr 30, 2025

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Description

Screen version 5.0.0 and older version 4 releases have a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root.

Scores

CVSS	Score	Vector	Source
4.0	5.7 Medium	CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	suse
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	suse

Weaknesses

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Affected Products

Product	Versions
screen	5.0. through 5.0.0Affected ? through 4.9.1Affected

References

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