Bug 2379675 (CVE-2025-7519)

Summary: CVE-2025-7519 polkit: XML policy file with a large number of nested elements may lead to out-of-bounds write
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 polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit this flaw, a high-privilege account is needed as it's required to place the malicious policy file properly.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2429931, 2429932    
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Description OSIDB Bzimport 2025-07-11 22:00:58 UTC 
When polkit is processing a XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This can lead polkit to crash or other unexpected behavior and arbitrary code execution is not discarded. To explore this flaw, a high privilege account is needed as it's required to properly place the malicious policy file.