| Name | CVE-2023-24626 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| screen (PTS) | jessie, jessie (lts) | 4.2.1-3+deb8u2 | vulnerable |
| stretch (security), stretch (lts), stretch | 4.5.0-6+deb9u1 | vulnerable | |
| buster (security), buster, buster (lts) | 4.6.2-3+deb10u1 | vulnerable | |
| bullseye | 4.8.0-6 | vulnerable | |
| bookworm | 4.9.0-4 | vulnerable | |
| sid, trixie | 4.9.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| screen | source | (unstable) | 4.9.1-1 | unimportant |
https://savannah.gnu.org/bugs/?63195 (private)
https://git.savannah.gnu.org/cgit/screen.git/commit/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7
screen in Debian not installed setuid or setgid