UpHeron
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Servers and applications

CVE-2021-28690

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.

Severity
Medium 6.5
Published
29 Jun 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • From 4.12 up to 4.15.0
  • Version 4.15.0-rc1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-28690
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-28690