CVE-2020-25669
Linux Kernel Use After Free in sunkbd
Description
A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.
INFO
Published Date :
May 26, 2021, 12:15 p.m.
Last Modified :
Nov. 7, 2023, 3:20 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2020-25669
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-2020-25669.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/11/05/2 | Exploit Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2020/11/20/5 | Exploit Mailing List Third Party Advisory |
| https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e | 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.netapp.com/advisory/ntap-20210702-0006/ | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2020/11/05/2%2C | |
| https://www.openwall.com/lists/oss-security/2020/11/20/5%2C |
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-2020-25669 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-25669 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 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://www.openwall.com/lists/oss-security/2020/11/05/2%2C [No types assigned] Added Reference Red Hat, Inc. https://www.openwall.com/lists/oss-security/2020/11/20/5%2C [No types assigned] Removed Reference Red Hat, Inc. https://www.openwall.com/lists/oss-security/2020/11/05/2, Removed Reference Red Hat, Inc. https://www.openwall.com/lists/oss-security/2020/11/20/5, -
Reanalysis by [email protected]
Feb. 24, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.9.4:*:*:*:*:*:*:* OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.245 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.245 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.208 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.159 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.79 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.9.10 -
Modified Analysis by [email protected]
May. 13, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20210702-0006/ No Types Assigned https://security.netapp.com/advisory/ntap-20210702-0006/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 02, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210702-0006/ [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 04, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2020/11/05/2 No Types Assigned http://www.openwall.com/lists/oss-security/2020/11/05/2 Exploit, Mailing List, Third Party Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2020/11/20/5 No Types Assigned http://www.openwall.com/lists/oss-security/2020/11/20/5 Exploit, Mailing List, Third Party Advisory Changed Reference Type https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e No Types Assigned https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e Patch, 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://www.openwall.com/lists/oss-security/2020/11/05/2, No Types Assigned https://www.openwall.com/lists/oss-security/2020/11/05/2, Exploit, Mailing List, Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2020/11/20/5, No Types Assigned https://www.openwall.com/lists/oss-security/2020/11/20/5, Exploit, Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.9.4:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-25669 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-2020-25669
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} -0.00%
score
0.19808
percentile