// For flags

CVE-2021-28690

 

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

x86: Las protecciones TSX Async Abort no son restauradas después de S3. Este problema está relacionado con una vulnerabilidad de seguridad especulativa TSX Async Abort. Consulte https://xenbits.xen.org/xsa/advisory-305.html para mayor detalles. La mitigación de TAA al desactivar TSX (la opción predeterminada y preferida) requiere seleccionar una configuración no predeterminada en MSR_TSX_CTRL. Esta configuración no se restaura después de la suspensión de S3

*Credits: This issue was discovered by Andrew Cooper of Citrix.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-18 CVE Reserved
  • 2021-06-28 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 >= 4.12 <= 4.15.0
Search vendor "Xen" for product "Xen" and version " >= 4.12 <= 4.15.0"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.15.0
Search vendor "Xen" for product "Xen" and version "4.15.0"
rc1
Affected