CVE-2023-31355 (GCVE-0-2023-31355)

Vulnerability from cvelistv5 – Published: 2024-08-05 16:04 – Updated: 2024-08-06 14:58
VLAI?
Summary
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
Severity ?
6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
AMD
References
Impacted products
Vendor Product Version
AMD 3rd Gen AMD EPYC™ Processors Affected: various , < MilanPI 1.0.0.D (Platform Initialization)
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    AMD 4th Gen AMD EPYC™ Processors Affected: various , < GenoaPI 1.0.0.C (Platform Initialization)
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    AMD AMD EPYC™ Embedded 7003 Affected: various , < EmbMilanPI-SP3 1.0.0.9 (Platform Initialization)
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    AMD AMD EPYC™ Embedded 9003 Affected: various , < EmbGenoaPI-SP5 1.0.0.7 (Platform Initialization)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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