SB2026031838 - Fedora 42 update for openssh
Published: March 18, 2026
Security Bulletin ID
SB2026031838
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Resource management error (CVE-ID: CVE-2026-3497)
CWE-ID: CWE-399 - Resource Management Errors
CVSSv4: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect handling of disconnecting clients in OpenSSH GSSAPI Key Exchange when GSSAPIKeyExchange setting is enabled. An authenticated user can crash the OpenSSH server or potentially execute arbitrary code.
Remediation
Install update from vendor's website.