CVE-2021-28690

MEDIUM
6.5
CVSS Score
Published: June 29, 2021 at 11:16 AM UTC
Updated: June 17, 2026 at 03:46 AM UTC
1 product affected across 1 vendorXen

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1.0%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Xen· Xenwordpress-plugin
95%
v ≥ 4.13.x4.12 ≤ v ≤ 4.15.04.11.x4.12.x4.13.x4.15.0 rc1
Vendor states this is fixed in next of xen-unstable (unaffected)
Vendor states this is fixed in 4.12 (unknown)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/202107-30

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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