Bug 2387305 (CVE-2025-8735)

Summary: CVE-2025-8735 cflow: cflow Lexer Null Pointer Dereference
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 cflow. The yylex function in c.c exhibits a null pointer dereference due to manipulation, allowing a local attacker to trigger a denial of service via crafted input. This condition arises from improper handling of lexical analysis data. The resulting null pointer dereference can lead to program termination.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2387638, 2387637    
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Description OSIDB Bzimport 2025-08-08 19:02:34 UTC
A vulnerability classified as problematic was found in GNU cflow up to 1.8. Affected by this vulnerability is the function yylex of the file c.c of the component Lexer. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.