SB2026102849 - Fedora 44 update for openssh



SB2026102849 - Fedora 44 update for openssh

Published: October 28, 2026

Security Bulletin ID SB2026102849
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Validation of Specified Quantity in Input (CVE-ID: CVE-2026-106585)

CWE-ID: CWE-1284 - Improper Validation of Specified Quantity in Input

CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to potentially cause a denial of service through oversized decompressed SSH packets.

The vulnerability exists due to insufficient validation of decompressed packet length in ssh and sshd when processing compressed SSH payloads. A remote user can supply a compressed payload that expands beyond the maximum supported packet length to potentially exhaust resources or disrupt packet processing.


Remediation

Install update from vendor's website.