CVE-2019-17344

MEDIUM

Xen < 4.11.2 - Denial of Service via Long-Running PTE Update Operation

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 by leveraging a long-running operation that exists to support restartability of PTE updates.

References (5)

Core 5
Core References
Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-290.html
Mitigation, Patch, Vendor Advisory x_refsource_misc
https://xenbits.xen.org/xsa/advisory-290.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2019/10/25/3
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 6.5
EPSS 0.0035
EPSS Percentile 26.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Details

CWE
CWE-662
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