CVE-2019-17342

Name: CVE-2019-17342
Creator: NVD / NIST
Published: 2019-10-08T01:15:10.58+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2019-17342 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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 a race condition that arose when XENMEM_exchange was introduced.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

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 a race condition that arose when XENMEM_exchange was introduced.

Metrics

CVSS 3.1

7/10

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

EPSS Probability

0.26%

17.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Xen	Xen	<= 4.11.2
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

http://www.openwall.com/lists/oss-security/2019/10/25/2Mailing List
http://xenbits.xen.org/xsa/advisory-287.htmlPatch, Vendor Advisory
https://seclists.org/bugtraq/2020/Jan/21Mailing List, Third Party Advisory
https://www.debian.org/security/2020/dsa-4602Third Party Advisory
https://xenbits.xen.org/xsa/advisory-287.htmlVendor Advisory
http://www.openwall.com/lists/oss-security/2019/10/25/2Mailing List
http://xenbits.xen.org/xsa/advisory-287.htmlPatch, Vendor Advisory
https://seclists.org/bugtraq/2020/Jan/21Mailing List, Third Party Advisory
https://www.debian.org/security/2020/dsa-4602Third Party Advisory
https://xenbits.xen.org/xsa/advisory-287.htmlVendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2019-17342?

How severe is CVE-2019-17342?

CVE-2019-17342 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2019-17342?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-17342?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST