CVE-2019-17344

Published: Oct 8, 2019Modified: Jun 17, 2026

6.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Exploitability: 2.0 / Impact: 4.0

Source: NVD

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.

Affected (3)

Products: Xen: Xen · Debian: Debian Linux

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Xen Xen	Up to 4.11.2

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0
Debian Debian Linux	Version 9.0

Related CWEs

CWE-662

Improper Synchronization

The product utilizes multiple threads or processes to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes.

References (10)

http://www.openwall.com/lists/oss-security/2019/10/25/3

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://xenbits.xen.org/xsa/advisory-290.html

Source: cve@mitre.org

Vendor Advisory

https://seclists.org/bugtraq/2020/Jan/21

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://www.debian.org/security/2020/dsa-4602

Source: cve@mitre.org

Third Party Advisory

https://xenbits.xen.org/xsa/advisory-290.html

Source: cve@mitre.org

MitigationPatchVendor Advisory

http://www.openwall.com/lists/oss-security/2019/10/25/3