CVE catalog
CVE-2023-24626
GNU Screen vulnerabilities
- Severity
- Medium · CVSS 6.2
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.54% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | screen | sid | 5.0.2-1 | fixed |
| Debian | screen | forky | 5.0.2-1 | fixed |
| Debian | screen | trixie | 4.9.1-3 | fixed |
| Debian | screen | bookworm | 4.9.0-4 | vulnerable |
| Ubuntu | screen | noble | Not reported | vulnerable |
| Ubuntu | screen | noble | 4.9.1-1ubuntu1 | fixed |
| Alpine | screen | 3.15 | 4.8.0-r6 | fixed |
| Alpine | screen | 3.16 | 4.9.0-r1 | fixed |
| Alpine | screen | 3.17 | 4.9.0-r1 | fixed |
| Alpine | screen | 3.18 | 4.9.0-r3 | fixed |
| Alpine | screen | 3.19 | 4.9.0-r3 | fixed |
| Alpine | screen | 3.20 | 4.9.0-r3 | fixed |
| Alpine | screen | 3.21 | 4.9.0-r3 | fixed |
| Alpine | screen | 3.22 | 4.9.0-r3 | fixed |
| Alpine | screen | 3.23 | 4.9.0-r3 | fixed |
| Alpine | screen | 3.24 | 4.9.0-r3 | fixed |
| Ubuntu | screen | pro | 4.6.1-1 | vulnerable |
| Ubuntu | screen | pro | 4.6.2-1 | vulnerable |
| Ubuntu | screen | pro | 4.6.2-1ubuntu1 | vulnerable |
| Ubuntu | screen | pro | 4.6.2-1ubuntu1.1 | vulnerable |
| Ubuntu | screen | pro | 4.6.2-1ubuntu1.1+esm1 | fixed |
| Ubuntu | screen | 22.04 | 4.8.0-6 | vulnerable |
| Ubuntu | screen | 22.04 | 4.8.0-6build1 | vulnerable |
| Ubuntu | screen | 22.04 | 4.8.0-7 | vulnerable |
| Ubuntu | screen | 22.04 | 4.9.0-1 | vulnerable |
| Ubuntu | screen | 22.04 | 4.9.0-1ubuntu0.1 | fixed |
| Ubuntu | screen | 24.04 | 4.9.0-4 | vulnerable |
| Ubuntu | screen | 24.04 | 4.9.1-1 | vulnerable |
| Ubuntu | screen | 24.04 | 4.9.1-1build1 | vulnerable |
| Ubuntu | screen | 24.04 | 4.9.1-1ubuntu1 | fixed |
| Ubuntu | screen | pro | 4.6.1-1 | vulnerable |
| Ubuntu | screen | pro | 4.6.2-1 | vulnerable |
| Ubuntu | screen | pro | 4.6.2-1ubuntu1 | vulnerable |
| Ubuntu | screen | pro | 4.6.2-1ubuntu1.1 | vulnerable |
| Ubuntu | screen | pro | 4.6.2-1ubuntu1.1+esm1 | fixed |
| Ubuntu | screen | 20.04 | 4.6.2-3build1 | vulnerable |
| Ubuntu | screen | 20.04 | 4.7.0-1 | vulnerable |
| Ubuntu | screen | 20.04 | 4.8.0-1 | vulnerable |
| Ubuntu | screen | 20.04 | 4.8.0-1ubuntu0.1 | vulnerable |
| Ubuntu | screen | 22.04 | 4.8.0-6 | vulnerable |
| Ubuntu | screen | 22.04 | 4.8.0-6build1 | vulnerable |
| Ubuntu | screen | 22.04 | 4.8.0-7 | vulnerable |
| Ubuntu | screen | 22.04 | 4.9.0-1 | vulnerable |
| Ubuntu | screen | 22.04 | 4.9.0-1ubuntu0.1 | fixed |
| Opensuse | screen | tumbleweed | 4.9.1-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | screen | source | sid | 4.9.1-1 | unimportant | Not reported | Not reported |
| Debian | screen | source | forky | 4.9.1-1 | unimportant | Not reported | Not reported |
| Debian | screen | source | trixie | 4.9.1-1 | unimportant | Not reported | Not reported |
| Debian | screen | source | bookworm | (unfixed) | unimportant | Not reported | Not reported |
| Ubuntu | screen | deb | noble | 4.9.1-1ubuntu1 | Not reported | Not reported | Not reported |
| Alpine | screen | apk | 3.15 | 4.8.0-r6 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Alpine | screen | apk | 3.16 | 4.9.0-r1 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Alpine | screen | apk | 3.17 | 4.9.0-r1 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Alpine | screen | apk | 3.18 | 4.9.0-r3 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Alpine | screen | apk | 3.19 | 4.9.0-r3 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Alpine | screen | apk | 3.20 | 4.9.0-r3 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Alpine | screen | apk | 3.21 | 4.9.0-r3 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Alpine | screen | apk | 3.22 | 4.9.0-r3 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Alpine | screen | apk | 3.23 | 4.9.0-r3 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Alpine | screen | apk | 3.24 | 4.9.0-r3 | Not reported | ALPINE-CVE-2023-24626 | Not reported |
| Ubuntu | screen | deb | pro | 4.6.2-1ubuntu1.1+esm1 | Not reported | USN-6198-1 | Not reported |
| Ubuntu | screen | deb | 22.04 | 4.9.0-1ubuntu0.1 | Not reported | USN-7978-1 | Not reported |
| Ubuntu | screen | deb | 24.04 | 4.9.1-1ubuntu1 | Not reported | USN-7978-1 | Not reported |
| Ubuntu | screen | deb | pro | 4.6.2-1ubuntu1.1+esm1 | Not reported | UBUNTU-CVE-2023-24626 | Not reported |
| Ubuntu | screen | deb | 22.04 | 4.9.0-1ubuntu0.1 | Not reported | UBUNTU-CVE-2023-24626 | Not reported |
| Opensuse | screen | rpm | tumbleweed | 4.9.1-1.1 | Not reported | OPENSUSE-SU-2024:13285-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_13285-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2023-24626]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-24626]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-24626]
- [https://osv.dev/vulnerability/USN-6198-1]
- [https://osv.dev/vulnerability/USN-7978-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:13285-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-24626]
- [https://ubuntu.com/security/notices/USN-7978-1]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]