VulnerabilityModified
CVE-2020-27673
Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.
MEDIUM 5.5EPSS 0.41%
Does this matter?
Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.41% probability · 35th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel · debian/debian linux · opensuse/leap · xen/xen
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/01/19/6Mailing List, Third Party Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202011-06Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-332.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/01/19/6Mailing List, Third Party Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202011-06Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-332.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.