CVE-2022-42335
 
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
x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.
*Credits:
This issue was discovered by Roger Pau Monné of XenServer.
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2022-10-03 CVE Reserved
- 2023-04-25 CVE Published
- 2024-07-30 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (5)
URL | Tag | Source |
---|---|---|
http://www.openwall.com/lists/oss-security/2023/04/25/1 | Mailing List |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
http://xenbits.xen.org/xsa/advisory-430.html | 2024-02-04 | |
https://xenbits.xenproject.org/xsa/advisory-430.txt | 2024-02-04 |
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" | 4.17.0 Search vendor "Xen" for product "Xen" and version "4.17.0" | x86 |
Affected
| ||||||
Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 38 Search vendor "Fedoraproject" for product "Fedora" and version "38" | - |
Affected
|