CVE-2018-19961 is a high-severity vulnerability affecting Xen through 4.11.x on AMD x86 platforms, including various Citrix and Debian Xen-based products. It allows a malicious guest OS user to potentially escalate privileges to the host OS due to improper TLB flushes after IOMMU mapping changes. The attack requires low privileges but has high attack complexity, leading to high impact on confidentiality, integrity, and availability. Currently, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.11.1CPE matchmatch criteria | cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:* | ||
7.1CPE matchmatch criteria | cpe:2.3:a:citrix:xenserver:7.1:cu1:*:*:ltsr:*:*:* | ||
7.5CPE matchmatch criteria | cpe:2.3:a:citrix:xenserver:7.5:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
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The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.