NULL Pointer Dereference Affecting xen package, versions <4.11.1-r0
Snyk CVSS
Attack Complexity
Low
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
0.05% (20th
percentile)
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Test your applications- Snyk ID SNYK-ALPINE315-XEN-1929101
- published 21 Jul 2020
- disclosed 1 Nov 2018
Introduced: 1 Nov 2018
CVE-2018-18883 Open this link in a new tabHow to fix?
Upgrade Alpine:3.15 xen to version 4.11.1-r0 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 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.