CVE-2020-27673
MEDIUM
5.5
CVSS Score
Published: October 22, 2020 at 08:33 PM UTC
Updated: June 17, 2026 at 03:09 AM UTC
4 products affected across 4 vendorsLinux KernelDebian LinuxLeap
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%2.6.12 ≤ v < 4.4.2444.10.0 ≤ v < 4.14.2074.15.0 ≤ v < 4.19.1554.20.0 ≤ v < 5.4.754.5.0 ≤ v < 4.9.2445.5.0 ≤ v < 5.9.55.10 rc1
Affected range stops below 4.14.207, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.155, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.244, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.244, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.75, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.9.5, so it looks safe — our inference, not a vendor statement
Leap· openSUSEdrupal
95%Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070
- https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070
- https://security.gentoo.org/glsa/202011-06
References (9)
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.htmlMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/01/19/6x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.htmlVendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202011-06CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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