Bug 2571392 (CVE-2024-36309)

Summary: CVE-2024-36309 agesa: agesa: Memory remapping attack via missing NBIO lock bit protection
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in AGESA. Missing lock bit protection in the Northbridge Input/Output (NBIO) allows a local attacker with elevated privileges to access an intentionally disabled device. An attacker can leverage this device to execute a remapping attack, potentially resulting in data disclosure, unauthorized system modification, or a denial of service (DoS).
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Description OSIDB Bzimport 2026-11-10 22:41:26 UTC
Missing Lock Bit Protection in the Northbridge IO (NBIO) could allow a privileged attacker to use an intentionally disabled device as part of a remapping attack potentially impacting data confidentiality, integrity, or availability.