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.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 2 - Core | screen | 2023-04-27 18:36 | ALAS2-2023-2023 |
Amazon Linux 2023 | screen | 2023-06-21 19:10 | ALAS2023-2023-224 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
NVD | CVSSv3 | 6.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |