[Midnightbsd-cvs] [MidnightBSD/src] 9fe163: A signal handler in sshd(8) may call a logging fun...

[Lucas Holt]

  Branch: refs/heads/stable/3.2
  Home:   https://github.com/MidnightBSD/src
  Commit: 9fe163cafc150dd86db03429d951bb4f53a20a50
      https://github.com/MidnightBSD/src/commit/9fe163cafc150dd86db03429d951bb4f53a20a50
  Author: Lucas Holt <luke at foolishgames.com>
  Date:   2024-08-08 (Thu, 08 Aug 2024)

  Changed paths:
    M crypto/openssh/sshd.c

  Log Message:
  -----------
  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

Obtained from: FreeBSD



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