VAR-202202-0007
Vulnerability from variot - Updated: 2023-12-18 10:51A vulnerability exists in System Management Interrupt (SWSMI) handler of InsydeH2O UEFI Firmware code located in SWSMI handler that dereferences gRT (EFI_RUNTIME_SERVICES) pointer to call a GetVariable service, which is located outside of SMRAM. This can result in code execution in SMM (escalating privilege from ring 0 to ring -2). The InsydeH2O Hardware-2-Operating System (H2O) UEFI firmware contains multiple vulnerabilities related to memory management in System Management Mode (SMM).Vulnerability Category Count
SMM Privilege Escalation 10
SMM Memory Corruption 12
DXE Memory Corruption 1CVE-2020-27339 Affected CVE-2020-5953 Affected CVE-2021-33625 Affected CVE-2021-33626 Affected CVE-2021-33627 Affected CVE-2021-41837 Affected CVE-2021-41838 Affected CVE-2021-41839 Affected CVE-2021-41840 Affected CVE-2021-41841 Affected CVE-2021-42059 Affected CVE-2021-42060 Not Affected CVE-2021-42113 Affected CVE-2021-42554 Affected CVE-2021-43323 Affected CVE-2021-43522 Affected CVE-2021-43615 Not Affected CVE-2021-45969 Not Affected CVE-2021-45970 Not Affected CVE-2021-45971 Not Affected CVE-2022-24030 Not Affected CVE-2022-24031 Not Affected CVE-2022-24069 Not Affected CVE-2022-28806 Unknown. InsydeH2O UEFI There is an unspecified vulnerability in the firmware.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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