Off-by-one Error Affecting xen package, versions <4.14.0-r3
Snyk CVSS
Attack Complexity
Low
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
0.04% (12th
percentile)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-ALPINE315-XEN-1929191
- published 21 Jan 2021
- disclosed 24 Nov 2020
Introduced: 24 Nov 2020
CVE-2020-29040 Open this link in a new tabHow to fix?
Upgrade Alpine:3.15 xen to version 4.14.0-r3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Alpine.
See How to fix? for Alpine:3.15 relevant fixed versions and status.
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.