CVE-2021-28690

Severity

65%

Complexity

27%

Confidentiality

60%

x86: TSX Async Abort protections not restored after S3 This issue relates to the TSX Async Abort speculative security vulnerability. Please see https://xenbits.xen.org/xsa/advisory-305.html for details. Mitigating TAA by disabling TSX (the default and preferred option) requires selecting a non-default setting in MSR_TSX_CTRL. This setting isn't restored after S3 suspend.

CVSS 3.1 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

CVSS 2.0 Base Score 4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/C:P/I:N/A:N).

Overview

First reported 3 years ago

2021-06-29 12:15:00

Last updated 3 years ago

2021-09-21 16:13:00

Affected Software

Xen

References

https://xenbits.xenproject.org/xsa/advisory-377.txt

https://xenbits.xenproject.org/xsa/advisory-377.txt

Patch, Vendor Advisory

GLSA-202107-30

GLSA-202107-30

Third Party Advisory

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