Bug 2445801 (CVE-2025-70034)

Summary: CVE-2025-70034 ssh2: ssh2: Denial of Service due to inefficient regular expression complexity
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: abarbaro, alizardo, dschmidt, erezende, jchui, jhe, jkoehler, jlanda, kshier, ktsao, lphiri, nboldt, psrna, simaishi, smcdonal, stcannon, teagle, yguenane
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in ssh2. This vulnerability, categorized as CWE-1333 (Inefficient Regular Expression Complexity), allows a remote attacker to cause a Denial of Service (DoS) by sending specially crafted input that triggers inefficient processing of regular expressions. This can lead to the affected component becoming unresponsive.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-03-09 18:01:40 UTC
An issue pertaining to CWE-1333: Inefficient Regular Expression Complexity (4.19) was discovered in mscdex ssh2 v1.17.0.