Bug 2554278 (CVE-2026-111678)

Summary: CVE-2026-111678 antiword: antiword: Denial of Service via out-of-bounds read during document parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in antiword. An out-of-bounds read vulnerability exists in the document parser due to missing bounds checks when processing internal formatting data. By tricking a user into opening a specially crafted Microsoft Word document, an attacker could cause the application to crash, resulting in a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2558144, 2558145    
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Description OSIDB Bzimport 2026-10-16 18:11:45 UTC 
Antiword through 0.37 contains a stack out-of-bounds read vulnerability in vGet8PapInfo and vGet8ChrInfo in prop8.c because FKP run counts and grpprl offsets are not bounded. Attackers can supply a crafted .doc file with malicious FKP pages to read past the 512-byte stack buffer, crashing antiword or corrupting style parsing.