CVE-2020-27673
Advisory lineage Upstream: 0 Downstream: 29
Modified
Published: 22 Oct 2020, 20:33
Last modified:04 Aug 2024, 16:18
Vulnerability Summary
Overall Risk (default)
low
22/100 CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.03% LOW
0% probability -0.03%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
22 Oct 2020, 20:33
Published
Vulnerability first disclosed
04 Aug 2024, 16:18
Last Modified
Vulnerability information updated
Description
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.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS Trends
Current EPSS score: 0.03%• Percentile: 11%
Affected Systems
- debian•debian_linux
9.0
- linux•linux_kernel
≥ 2.6.12, < 4.4.244 | ≥ 4.5.0, < 4.9.244 | ≥ 4.10.0, < 4.14.207 | ≥ 4.15.0, < 4.19.155 | ≥ 4.20.0, < 5.4.75 | ≥ 5.5.0, < 5.9.5 | 5.10:rc1
- opensuse•leap
15.1 | 15.2
- xen•xen
≤ 4.14.0
References (9)
- https://xenbits.xen.org/xsa/advisory-332.html
- https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html
- https://security.gentoo.org/glsa/202011-06
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
- http://www.openwall.com/lists/oss-security/2021/01/19/6