Vulnerability Monitor

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CVE-2021-41839

An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Published

2022-02-03T02:15:07.123

Last Modified

2024-11-21T06:26:52.307

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.2 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

6.4

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	insyde	insydeh2o	< 5.16.25	Yes
Application	insyde	insydeh2o	< 5.26.25	Yes
Application	insyde	insydeh2o	< 5.35.25	Yes
Application	insyde	insydeh2o	< 5.43.25	Yes
Application	insyde	insydeh2o	< 5.51.25	Yes

References

https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20220217-0016/ Third Party Advisory ([email protected])
https://www.insyde.com/security-pledge Vendor Advisory ([email protected])
https://www.insyde.com/security-pledge/SA-2022020 Vendor Advisory ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20220217-0016/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.insyde.com/security-pledge Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.insyde.com/security-pledge/SA-2022020 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)