CVE-2024-21980
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in MilanPI 1.0.0.D, GenoaPI 1.0.0.C, EmbMilanPI-SP3 1.0.0.9, EmbGenoaPI-SP5 1.0.0.7
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- 1 proof of concept on GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- AMD 3rd Gen AMD EPYC™ Processors
From various · fixed in MilanPI 1.0.0.D
- AMD 4th Gen AMD EPYC™ Processors
From various · fixed in GenoaPI 1.0.0.C
- AMD AMD EPYC™ Embedded 7003
From various · fixed in EmbMilanPI-SP3 1.0.0.9
- AMD AMD EPYC™ Embedded 9003
From various · fixed in EmbGenoaPI-SP5 1.0.0.7