Vulnerability Details : CVE-2023-24626
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.
Vulnerability category: Denial of service
Products affected by CVE-2023-24626
- cpe:2.3:a:gnu:screen:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-24626
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 24 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-24626
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
2.0
|
4.0
|
NIST |
References for CVE-2023-24626
-
https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7
Mailing List;Patch
-
https://www.exploit-db.com/exploits/51252
GNU screen v4.9.0 - Privilege Escalation - Linux local ExploitThird Party Advisory;VDB Entry
-
https://savannah.gnu.org/bugs/?63195
GNU Screen - Bugs: Exiting with Error [Savannah]Permissions Required
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