Medium severity · published Mar 1, 2023
CVE-2022-27672
When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in…
4.7
CVSS
0.3%
EPSS
No
On KEV
Description
When SMT is enabled, certain AMD processors may speculatively execute instructions using a target
from the sibling thread after an SMT mode switch potentially resulting in information disclosure.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
A10-9600p Firmware · Amd
All versions, or not specified · source: NVD
AF
A10-9630p Firmware · Amd
All versions, or not specified · source: NVD
AF
A12-9700p Firmware · Amd
All versions, or not specified · source: NVD
AF
A12-9730p Firmware · Amd
All versions, or not specified · source: NVD
AF
A4-9120 Firmware · Amd
All versions, or not specified · source: NVD
AF
A4-9120c Firmware · Amd
All versions, or not specified · source: NVD
AF
A6-9210 Firmware · Amd
All versions, or not specified · source: NVD
AF
A6-9220 Firmware · Amd
All versions, or not specified · source: NVD
AF
A6-9220c Firmware · Amd
All versions, or not specified · source: NVD
AF
A9-9410 Firmware · Amd
All versions, or not specified · source: NVD
AF
A9-9420 Firmware · Amd
All versions, or not specified · source: NVD
AX
Athlon X4 750 Firmware · Amd
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-27672
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-27672
security.gentoo.org
https://security.gentoo.org/glsa/202402-07
Mitigation
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045
xenbits.xen.org
http://xenbits.xen.org/xsa/advisory-426.html
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