CVE-2019-17342: Race Condition

Published Oct 8, 2019
·
Updated

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 XENMEMexchange was introduced.

Affected Software

4 affected componentsFixes available
debian/xen
4.11.4+107-gef32c7afa2-14.14.6-14.14.5+94-ge49571868d-14.17.2+76-ge1f9cb16e2-1~deb12u14.17.2+76-ge1f9cb16e2-1
XEN Xen<=4.11.2
Debian Debian Linux=9.0
Debian Debian Linux=10.0

Event History

Oct 8, 2019
CVE Published
via MITRE·12:03 AM
Data Sourced
via MITRE·12:03 AM
Description

Frequently Asked Questions

1

What is the severity of CVE-2019-17342?

CVE-2019-17342 has been categorized as a high severity vulnerability due to its potential to cause denial of service or privilege escalation in affected systems.

2

How do I fix CVE-2019-17342?

To fix CVE-2019-17342, update Xen to version 4.11.4 or higher, or to an unaffected version beyond 4.11.2.

3

Which versions of Xen are affected by CVE-2019-17342?

CVE-2019-17342 affects Xen versions up to and including 4.11.2, along with certain versions of Debian-based systems.

4

What type of vulnerability is CVE-2019-17342?

CVE-2019-17342 is a race condition vulnerability that affects x86 PV guest operating systems in Xen virtualization.

5

Can CVE-2019-17342 be exploited remotely?

Yes, CVE-2019-17342 can potentially be exploited by malicious users with access to the guest OS, leading to privilege escalation or denial of service.

Contact

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