CVE Vulnerability

CVE-2020-29040

An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671.

4.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2 / Impact : 6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://xenbits.xen.org/xsa/advisory-355.html Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/01/19/4 Mailing List Third Party Advisory
http://xenbits.xen.org/xsa/advisory-355.html Vendor Advisory
Configurations

Configuration 1

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
Information

Published : 2020-11-24 05:15

Updated : 2022-04-26 04:34

NVD link : CVE-2020-29040

Mitre link : CVE-2020-29040

Products Affected
No products.
CWE
CWE-193

Off-by-one Error

CWE-787