Medium severity · published Nov 15, 2022
CVE-2022-32267
DMA transactions which are targeted at input buffers used for the SmmResourceCheckDxe software SMI handler cause SMRAM corruption (a TOCTOU attack) DMA transactions which are…
6.4
CVSS
0.1%
EPSS
No
On KEV
Description
DMA transactions which are targeted at input buffers used for the SmmResourceCheckDxe software SMI handler cause SMRAM corruption (a TOCTOU attack) DMA transactions which are targeted at input buffers used for the software SMI handler used by the SmmResourceCheckDxe driver could cause SMRAM corruption through a TOCTOU attack... This issue was discovered by Insyde engineering. Fixed in kernel Kernel 5.2: 05.27.23. Kernel 5.3: 05.36.23. Kernel 5.4: 05.44.23. Kernel 5.5: 05.52.23 https://www.insyde.com/security-pledge/SA-2022046
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Insyde
5.2 before 5.2.05.27.23; 5.3 before 5.3.05.36.23; 5.4 before 5.4.05.44.23; 5.5 before 5.5.05.52.23 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-32267
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-32267
Vendor Advisory
https://www.insyde.com/security-pledge
Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022046
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