PT-2019-5142 · Xen+1 · Xen+1

Manuel Bouyer · Published 2019-10-07 · Updated 2022-03-31 · CVE-2019-17344

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Xen versions prior to 4.12

Description The issue allows 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. It is related to an insufficient input validation mechanism in the Xen hypervisor, which can be exploited by an attacker to cause a denial of service.

Recommendations For Xen versions prior to 4.12, update to version 4.12 or later to resolve the issue.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

CWE-662

Related Identifiers

BDU:2020-01809

CVE-2019-17344

DSA-4602-1

SUSE-RU-2019:2767-1

SUSE-SU-2019:14199-1

SUSE-SU-2019:14201-1

SUSE-SU-2019:2753-1

SUSE-SU-2019:2769-1

SUSE-SU-2019:2783-1

SUSE-SU-2019_14199-1

SUSE-SU-2020:0388-1

Affected Products

Suse

Xen

References · 108

• https://osv.dev/vulnerability/UBUNTU-CVE-2019-17344 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-RU-2019:2767-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20200327SE16 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2753-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-17344 · Vendor Advisory
• http://xenbits.xen.org/xsa/advisory-290.html · Vendor Advisory
• https://xenbits.xen.org/xsa/advisory-290.html · Vendor Advisory
• https://debian.org/security/2020/dsa-4602 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-01809 · Security Note
• https://osv.dev/vulnerability/DSA-4602-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2769-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-17344 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-17344 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-17344 · Security Note
• https://ubuntu.com/security/CVE-2019-17344 · Vendor Advisory