Bug 2430673 (CVE-2025-15537)

Summary: CVE-2025-15537 mapnik: Mapnik: Heap-based buffer overflow via string_value function manipulation
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 Mapnik. A local attacker can exploit a heap-based buffer overflow vulnerability by manipulating the mapnik::dbf_file::string_value function in plugins/input/shape/dbfile.cpp. This vulnerability can lead to information disclosure, data integrity issues, and denial of service. A public exploit for this issue has been disclosed.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2430812, 2430813, 2430814, 2430815    
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Description OSIDB Bzimport 2026-01-18 11:01:15 UTC 
A security vulnerability has been detected in Mapnik up to 4.2.0. This issue affects the function mapnik::dbf_file::string_value of the file plugins/input/shape/dbfile.cpp. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.