CVE-2018-7540
Severity Score
6.5
*CVSS v3
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 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.
Se ha descubierto un problema en Xen hasta las versiones 4.10.x que permite que usuarios invitados del sistema operativo x86 PV provoquen una denegación de servicio (bloqueo de la CPU del sistema operativo del host) mediante la liberación de una página de tabla L3/L4 de tipo non-preemptable.
*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
- 2018-02-27 CVE Reserved
- 2018-02-27 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/103174 | Vdb Entry | |
| http://www.securitytracker.com/id/1040773 | Vdb Entry | |
| https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html | Mailing List |
|
| https://support.citrix.com/article/CTX232096 | X_refsource_confirm | |
| https://support.citrix.com/article/CTX232655 | X_refsource_confirm |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/201810-06 | 2018-11-13 | |
| https://www.debian.org/security/2018/dsa-4131 | 2018-11-13 | |
| https://xenbits.xen.org/xsa/advisory-252.html | 2018-11-13 |
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" | <= 4.10.0 Search vendor "Xen" for product "Xen" and version " <= 4.10.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||