vulnerability
FreeBSD: VID-58750d49-7302-11ef-8c95-195d300202b3 (CVE-2024-7589): OpenSSH -- Pre-authentication async signal safety issue
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Sep 15, 2024 | Sep 19, 2024 | Dec 10, 2025 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Sep 15, 2024
Added
Sep 19, 2024
Modified
Dec 10, 2025
Description
The FreeBSD Project reports: A signal handler in sshd(8) may call a logging function that is not async- signal-safe. The signal handler is invoked when a client does not authenticate within the LoginGraceTime seconds (120 by default). This signal handler executes in the context of the sshd(8)'s privileged code, which is not sandboxed and runs with full root privileges. This issue is another instance of the problem in CVE-2024-6387 addressed by FreeBSD-SA-24:04.openssh. The faulty code in this case is from the integration of blacklistd in OpenSSH in FreeBSD.
Solutions
freebsd-upgrade-package-openssh-portablefreebsd-upgrade-base-14_1-release-p3freebsd-upgrade-base-14_0-release-p9freebsd-upgrade-base-13_3-release-p5
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