CVE-2020-27673
Xen Linux DoS Denial of Service
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.
INFO
Published Date :
Oct. 22, 2020, 9:15 p.m.
Last Modified :
Aug. 22, 2023, 3:16 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2020-27673
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-27673.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2021/01/19/6 | Mailing List Third Party Advisory |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070 | Patch Vendor Advisory |
| https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070 | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202011-06 | Third Party Advisory |
| https://xenbits.xen.org/xsa/advisory-332.html | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-27673 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-27673 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Aug. 22, 2023
Action Type Old Value New Value Changed CPE Configuration AND *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.9.1 *cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions up to (including) 4.14.0 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.12 up to (excluding) 4.4.244 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5.0 up to (excluding) 4.9.244 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10.0 up to (excluding) 4.14.207 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15.0 up to (excluding) 4.19.155 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20.0 up to (excluding) 5.4.75 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.9.5 *cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions up to (including) 4.14.0 -
Modified Analysis by [email protected]
Apr. 26, 2022
Action Type Old Value New Value Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html Mailing List, Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html Mailing List, Third Party Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2021/01/19/6 No Types Assigned http://www.openwall.com/lists/oss-security/2021/01/19/6 Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html Mailing List, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/202011-06 No Types Assigned https://security.gentoo.org/glsa/202011-06 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-400 NVD-CWE-noinfo -
CVE Modified by [email protected]
Jan. 19, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/01/19/6 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 18, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html [No Types Assigned] -
CVE Modified by [email protected]
Dec. 11, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 11, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202011-06 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 06, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 02, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 30, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070 No Types Assigned https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070 Patch, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070 No Types Assigned https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070 Patch, Third Party Advisory Changed Reference Type https://xenbits.xen.org/xsa/advisory-332.html No Types Assigned https://xenbits.xen.org/xsa/advisory-332.html Patch, Third Party Advisory Added CWE NIST CWE-400 Added CPE Configuration AND *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.9.1 *cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions up to (including) 4.14.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-27673 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-27673
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.12065
percentile