Bug 2422034 (CVE-2025-67896)

Summary: CVE-2025-67896 exim: Exim: Remote heap corruption vulnerability
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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A flaw was found in Exim. A remote attacker could exploit a heap corruption vulnerability, which is a type of memory error, to potentially cause the system to crash (Denial of Service) or execute unauthorized code. Further details regarding the exploitation method are expected to be released at a later date.
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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: 2430488, 2430489    
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Description OSIDB Bzimport 2025-12-14 05:01:27 UTC
Exim before 4.99.1 allows remote heap corruption that will be further described on 2025-12-18.