CVE-2020-27671
 
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled.
Se detectó un problema en Xen versiones hasta 4.14.x, permitiendo a usuarios de SO invitado HVM y PVH de x86 causar una denegación de servicio (corrupción de datos), causar una filtración de datos o posiblemente alcanzar privilegios porque la combinación de descargas IOMMU TLB por página no se maneja apropiadamente
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-10-22 CVE Reserved
- 2020-10-22 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (8)
URL | Tag | Source |
---|---|---|
http://www.openwall.com/lists/oss-security/2021/01/19/8 | Mailing List |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
http://xenbits.xen.org/xsa/advisory-346.html | 2023-11-07 | |
https://xenbits.xen.org/xsa/advisory-346.html | 2023-11-07 |
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" | >= 4.2.0 <= 4.14.0 Search vendor "Xen" for product "Xen" and version " >= 4.2.0 <= 4.14.0" | - |
Affected
| ||||||
Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||
Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.2 Search vendor "Opensuse" for product "Leap" and version "15.2" | - |
Affected
| ||||||
Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 31 Search vendor "Fedoraproject" for product "Fedora" and version "31" | - |
Affected
|