Vulnerability Details : CVE-2022-33986
DMA attacks on the parameter buffer used by the VariableRuntimeDxe software SMI handler could lead to a TOCTOU attack. DMA attacks on the parameter buffer used by the software SMI handler used by the driver VariableRuntimeDxe could lead to a TOCTOU attack on the SMI handler and lead to corruption of SMRAM. This issue was discovered by Insyde engineering during a security review. This issue is fixed in Kernel 5.4: 05.44.23 and Kernel 5.5: 05.52.23. CWE-367 CWE-367 Report at: https://www.insyde.com/security-pledge/SA-2022056
Products affected by CVE-2022-33986
- cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-33986
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 12 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-33986
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.4
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.5
|
5.9
|
NIST |
CWE ids for CVE-2022-33986
-
The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-33986
-
https://www.insyde.com/security-pledge
Insyde's Security Pledge | Insyde SoftwareVendor Advisory
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https://www.insyde.com/security-pledge/SA-2022056
Insyde Security Advisory 2022056 | Insyde SoftwareVendor Advisory
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