Summary
It was discovered that some Intel processors did not implement sufficient
control flow management. A local attacker could use this to cause a denial
of service. (CVE-2021-0127)
Joseph Nuzman discovered that some Intel processors did not properly
initialise shared resources. A local attacker could use this to obtain
sensitive information. (CVE-2021-0145)
Mark Ermolov, Dmitry Sklyarov and Maxim Goryachy discovered that some Intel
processors did not prevent test and debug logic from being activated at
runtime. A local attacker could use this to escalate
privileges. (CVE-2021-0146)
It was discovered that some Intel processors did not properly restrict
access in some situations. A local attacker could use this to obtain
sensitive information. (CVE-2021-33117)
Brandon Miller discovered that some Intel processors did not properly
restrict access in some situations. A local attacker could use this to
obtain sensitive information or a remote attacker could use this to cause a
denial of service. (CVE-2021-33120)
It was discovered that some Intel processors did not completely perform
cleanup actions on multi-core shared buffers. A local attacker could
possibly use this to expose sensitive information. (CVE-2022-21123,
CVE-2022-21127)
Alysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi discovered that
some Intel processors improperly optimised security-critical code. A local
attacker could possibly use this to expose sensitive
information. (CVE-2022-21151)
It was discovered that some Intel processors did not properly perform
cleanup during specific special register write operations. A local attacker
could possibly use this to expose sensitive information. (CVE-2022-21166)
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | intel-microcode | 3.20220510.0ubuntu0.18.04.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | intel-microcode | 3.20220510.0ubuntu0.20.04.1 |
| Ubuntu · 22.04 LTS 22.04:LTS | intel-microcode | 3.20220510.0ubuntu0.22.04.1 |
Vulnerabilities 9
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Medium 5.5
Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to potentially enable …
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Medium 5.5
Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to potentially …
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Medium 5.5
Improper access control for some 3rd Generation Intel(R) Xeon(R) Scalable Processors before BIOS version MR7, may allow…
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Medium 5.5
Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potenti…
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Medium 5.5
Incomplete cleanup in specific special register read operations for some Intel(R) Processors may allow an authenticated…
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Medium 5.5
Processor optimization removal or modification of security-critical code for some Intel(R) Processors may allow an auth…
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Medium 5.5
Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticate…
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Medium 5.4
Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R) Processors may…
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Unscored —
Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow an unauthenti…
References
-
report
https://ubuntu.com/security/CVE-2021-0127
-
report
https://ubuntu.com/security/CVE-2021-0145
-
report
https://ubuntu.com/security/CVE-2021-0146
-
report
https://ubuntu.com/security/CVE-2021-33117
-
report
https://ubuntu.com/security/CVE-2021-33120
-
report
https://ubuntu.com/security/CVE-2022-21123
-
report
https://ubuntu.com/security/CVE-2022-21127
-
report
https://ubuntu.com/security/CVE-2022-21151
-
report
https://ubuntu.com/security/CVE-2022-21166