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.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7Mailing List, Patch
- https://savannah.gnu.org/bugs/?63195Permissions Required
- https://www.exploit-db.com/exploits/51252Third Party Advisory, VDB Entry
- https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7Mailing List, Patch
- https://savannah.gnu.org/bugs/?63195Permissions Required
- https://security.netapp.com/advisory/ntap-20250509-0003/
- https://www.exploit-db.com/exploits/51252Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/51252Third Party Advisory, VDB Entry
Timeline
- Published
- Apr 8, 2023
- Last modified
- Jun 17, 2026
- NVD status
- Modified