CVE-2019-17343

MEDIUM

Xen < 4.11.2 - Denial of Service and Privilege Escalation via HVM Physmap Misuse

Title source: llm
STIX 2.1

Description

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging incorrect use of the HVM physmap concept for PV domains.

References (5)

Core 5
Core References
Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-288.html
Vendor Advisory x_refsource_misc
https://xenbits.xen.org/xsa/advisory-288.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2019/10/25/10
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2020/dsa-4602
Mailing List, Third Party Advisory mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2020/Jan/21

Scores

CVSS v3 6.8
EPSS 0.0012
EPSS Percentile 30.5%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-667
Status published
Products (3)
debian/debian_linux 9.0
debian/debian_linux 10.0
xen/xen < 4.11.2
Published Oct 08, 2019
Tracked Since Feb 18, 2026