Fedora 40 OpenSSH Security Advisory: Critical Fix for CVE-2024-6387 Explored
Summary
SSH (Secure SHell) is a program for logging into and executing
commands on a remote machine. SSH is intended to replace rlogin and
rsh, and to provide secure encrypted communications between two
untrusted hosts over an insecure network. X11 connections and
arbitrary TCP/IP ports can also be forwarded over the secure channel.
OpenSSH is OpenBSD's version of the last free version of SSH, bringing
it up to date in terms of security and features.
This package includes the core files necessary for both the OpenSSH
client and server. To make this package useful, you should also
install openssh-clients, openssh-server, or both.
Update Information:
Backport fix for CVE-2024-6387 (rhbz#2294879) Backport fix for ObscureKeystrokeTiming logic error from OpenSSH 9.8
Change Log
* Tue Jul 2 2024 Dmitry Belyavskiy
References
[ 1 ] Bug #2294904 - CVE-2024-6387 openssh: Possible remote code execution due to a race condition in signal handling [fedora-40]
https://bugzilla.redhat.com/show_bug.cgi?id=2294904
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2024-dc89a2e1bf' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label