Bug 2401405 (CVE-2025-61962)

Summary: CVE-2025-61962 fetchmail: Fetchmail denial of service
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: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
When fetchmail receives a 334 reply from the SMTP server that does not contain the mandated blank after that response code, it will attempt reading from memory location 1, which will usually lead to a crash.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2402009, 2402010    
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Description OSIDB Bzimport 2025-10-04 04:01:10 UTC
In fetchmail before 6.5.6, the SMTP client can crash when authenticating upon receiving a 334 status code in a malformed context.