Low severity · published Nov 14, 2023
CVE-2023-20519
A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a…
3.3
CVSS
0.2%
EPSS
No
On KEV
Description
A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a potential loss of guest integrity.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
3G
3rd Gen AMD EPYC™ Processors · AMD
various · source: vendor
4G
4th Gen AMD EPYC™ Processors · AMD
various · source: vendor
GF
Genoapi Firmware · Amd
before 1.0.0.3 · source: NVD
MF
Milanpi Firmware · Amd
before 1.0.0.a · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-20519
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-20519
Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002
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