CVE-2020-25656
Linux Kernel Console Subsystem Ioctl Use-After-Free Information Disclosure Vulnerability
Description
A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.
INFO
Published Date :
Dec. 2, 2020, 1:15 a.m.
Last Modified :
Oct. 25, 2022, 5:03 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.5
Public PoC/Exploit Available at Github
CVE-2020-25656 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-25656
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-2020-25656.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1888726 | Exploit Issue Tracking 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://lkml.org/lkml/2020/10/16/84 | Exploit Mailing List Third Party Advisory |
| https://lkml.org/lkml/2020/10/29/528 | Mailing List Patch Third Party Advisory |
| https://www.starwindsoftware.com/security/sw-20210325-0006/ | 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).
Map Vulnerabilities into Different Layers of the Container Image
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-25656 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-25656 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]
Oct. 25, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:starwindsoftware:starwind_virtual_san:-:*:*:*:*:vsphere:*:* OR *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12533:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12658:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12859:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13170:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13586:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13861:*:*:*:vsphere:*:* -
Modified Analysis by [email protected]
Oct. 14, 2022
Action Type Old Value New Value Changed Reference Type https://www.starwindsoftware.com/security/sw-20210325-0006/ No Types Assigned https://www.starwindsoftware.com/security/sw-20210325-0006/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:starwindsoftware:starwind_virtual_san:-:*:*:*:*:vsphere:*:* -
CVE Modified by [email protected]
Oct. 11, 2022
Action Type Old Value New Value Added Reference https://www.starwindsoftware.com/security/sw-20210325-0006/ [No Types Assigned] -
Reanalysis by [email protected]
Apr. 01, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10 *cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:* OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10 *cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:* Changed CPE Configuration OR *cpe:2.3:a:debian:debian_linux:9.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
Modified Analysis by [email protected]
Jan. 01, 2022
Action Type Old Value New Value 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 Added CPE Configuration OR *cpe:2.3:a:debian:debian_linux:9.0:*:*:*:*:*:*:* -
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] -
Initial Analysis by [email protected]
Dec. 04, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1888726 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1888726 Exploit, Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://lkml.org/lkml/2020/10/16/84 No Types Assigned https://lkml.org/lkml/2020/10/16/84 Exploit, Mailing List, Third Party Advisory Changed Reference Type https://lkml.org/lkml/2020/10/29/528 No Types Assigned https://lkml.org/lkml/2020/10/29/528 Mailing List, Patch, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10 *cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-25656 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-2020-25656
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
0.05635
percentile