CVE-2018-19966 is a critical vulnerability affecting Xen through version 4.11.x, including various Debian distributions. It allows x86 PV guest OS users to trigger a denial of service (host OS crash) or potentially escalate privileges on the host due to an interpretation conflict in a shadow paging union data structure, stemming from an incorrect fix for CVE-2017-15595. Rated with a CVSS score of 8.8 (HIGH), this vulnerability has a local attack vector with low complexity, requiring low privileges and no user interaction, but can lead to high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.11.0, <= 4.11.1CPE matchmatch criteria | cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.