CVE-2020-27673: Medium severity linux kernel vulnerability
Published Oct 22, 2020
·Updated
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.
Affected Software
12 affected componentsFixes available
Linux Linux kernel>=2.6.12<4.4.244
Linux Linux kernel>=4.5.0<4.9.244
Linux Linux kernel>=4.10.0<4.14.207
Linux Linux kernel>=4.15.0<4.19.155
Linux Linux kernel>=4.20.0<5.4.75
Linux Linux kernel>=5.5.0<5.9.5
Linux Linux kernel=5.10-rc1
Debian Debian Linux=9.0
openSUSE Leap=15.1
openSUSE Leap=15.2
XEN Xen<=4.14.0
debian/linux
5.10.223-15.10.234-16.1.129-16.1.135-16.12.22-16.12.25-1
Remediation
Patch Available
Event History
Oct 22, 2020
CVE Published
via MITRE·08:33 PM
Data Sourced
via MITRE·08:33 PM
Description
Jan 11, 2024
Data Sourced
via Launchpad·11:47 PM
Description
May 2, 2025
Data Sourced
via Ubuntu·03:43 AM
RemedyDescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2020-27673?
CVE-2020-27673 is classified as a denial of service vulnerability affecting the Linux kernel.
2
How do I fix CVE-2020-27673?
To mitigate CVE-2020-27673, upgrade the Linux kernel to at least version 5.10.223-1 or a later version.
3
Which systems are affected by CVE-2020-27673?
CVE-2020-27673 primarily affects Linux kernel versions up to 5.9.1 and Xen versions up to 4.14.x.
4
What is the impact of CVE-2020-27673?
CVE-2020-27673 can lead to a denial of service by causing the host OS to hang when subjected to a high rate of events.
5
Is my Linux distribution affected by CVE-2020-27673?
Yes, distributions using affected versions of the Linux kernel, such as Debian and openSUSE, are vulnerable to CVE-2020-27673.