Bug 2375339 (CVE-2025-6818)

Summary: CVE-2025-6818 hdf5: HDF5 Heap Overflow
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: unspecifiedCC: bbrownin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in hdf5. The H5O__chunk_protect function in /src/H5Ochunk.c contains a heap-based buffer overflow resulting from improper memory handling. This flaw allows local attackers to trigger the overflow by manipulating a crafted file. This condition can lead to a denial of service.
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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: 2375495, 2375497, 2375500, 2375503, 2375506    
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Description OSIDB Bzimport 2025-06-28 16:01:26 UTC 
A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.