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Fedora 44 openssh Critical Info Disclosure Denial of Service CVE-2026-3497

fedora
Calendar Grey March 22, 2026
Dist Fedora Esm H88
Update for Fedora 44's OpenSSH addresses critical issues related to information disclosure and denial of service.
CVE-2026-3497: Fix information disclosure or denial of service due to uninitialized variables in gssapi-keyex

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:

CVE-2026-3497: Fix information disclosure or denial of service due to uninitialized variables in gssapi-keyex

Topics%20covered

Topics Covered

security advisory denial of service fedora critical information disclosure openssh

Change Log

* Wed Mar 18 2026 Zoltan Fridrich - 10.2p1-6 - CVE-2026-3497: Fix information disclosure or denial of service due to uninitialized variables in gssapi-keyex

References


[ 1 ] Bug #2442505 - 0043-openssh-8.7p1-ssh-manpage.patch introduces duplicates in documentation https://bugzilla.redhat.com/show_bug.cgi?id=2442505 [ 2 ] Bug #2447289 - CVE-2026-3497 openssh: OpenSSH GSSAPI: Information disclosure or denial of service due to uninitialized variables [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2447289 [ 3 ] Bug #2447290 - CVE-2026-3497 openssh: OpenSSH GSSAPI: Information disclosure or denial of service due to uninitialized variables [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2447290

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-62fb46caac' 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

Severity
critical
Lowest
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Critical

Name: openssh
Product: Fedora 44
Version: 10.2p1
Release: 6.fc44
URL: http://www.openssh.com/portable.html
Summary: An open source implementation of SSH protocol version 2

Topics%20covered

Topics Covered

security advisory denial of service fedora critical information disclosure openssh

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