CVE-2020-27673: Medium severity Linux Linux kernel vulnerability
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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.22-1Fixed in 6.12.25-1
Event History
Frequently Asked Questions
What is the severity of CVE-2020-27673?
CVE-2020-27673 is classified as a denial of service vulnerability affecting the Linux kernel.
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.
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.
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.
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.