Bug 2426435 (CVE-2025-15274)

Summary: CVE-2025-15274 fontforge: FontForge: Remote Code Execution via SFD File Parsing Heap-based Buffer Overflow
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FontForge. This heap-based buffer overflow vulnerability allows a remote attacker to execute arbitrary code on an affected system. This occurs when a user is tricked into opening a specially crafted SFD file, due to improper validation of user-supplied data length during file parsing. Successful exploitation can lead to complete control over the affected system.
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Bug Depends On: 2426586, 2426588    
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Description OSIDB Bzimport 2025-12-31 08:02:13 UTC 
FontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of SFD files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-28544.