7.0
HIGH
CVE-2020-25668
Linux Kernel Use After Free Denial of Service
Description

A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.

INFO

Published Date :

May 26, 2021, 12:15 p.m.

Last Modified :

Nov. 21, 2024, 5:18 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.0
Public PoC/Exploit Available at Github

CVE-2020-25668 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-2020-25668 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.

ID Vendor Product Action
1 Netapp solidfire_baseboard_management_controller_firmware
2 Netapp h410c_firmware
3 Netapp cloud_backup
4 Netapp solidfire_\&_hci_management_node
5 Netapp h300s_firmware
6 Netapp h500s_firmware
7 Netapp h700s_firmware
8 Netapp h410s_firmware
9 Netapp solidfire_baseboard_management_controller
10 Netapp a250_firmware
11 Netapp 500f_firmware
12 Netapp h300s
13 Netapp h410s
14 Netapp h500s
15 Netapp h700s
16 Netapp h410c
17 Netapp h300e_firmware
18 Netapp h500e_firmware
19 Netapp h700e_firmware
20 Netapp h300e
21 Netapp h500e
22 Netapp h700e
23 Netapp a250
24 Netapp 500f
1 Linux linux_kernel
1 Debian debian_linux
: Total Affected Vendor : 3 | Products : 26
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-2020-25668.

URL Resource
http://www.openwall.com/lists/oss-security/2020/10/30/1 Exploit Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/11/04/3 Exploit Mailing List Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220 Mailing List 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-20210702-0005/ Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/10/30/1%2C
https://www.openwall.com/lists/oss-security/2020/11/04/3%2C
http://www.openwall.com/lists/oss-security/2020/10/30/1 Exploit Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/11/04/3 Exploit Mailing List Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220 Mailing List 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-20210702-0005/ Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/10/30/1%2C
https://www.openwall.com/lists/oss-security/2020/11/04/3%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).

Profile Photo
hshivhare67/Kernel_4.1.15_CVE-2020-25668

None

Makefile C Assembly Shell Perl C++ Awk sed Python GDB

Updated: 1 year ago
0 stars 0 fork 0 watcher
Born at : Dec. 13, 2023, 9:14 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-25668 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-25668 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2020/10/30/1
    Added Reference http://www.openwall.com/lists/oss-security/2020/11/04/3
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C
    Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220
    Added Reference https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
    Added Reference https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
    Added Reference https://security.netapp.com/advisory/ntap-20210702-0005/
    Added Reference https://www.openwall.com/lists/oss-security/2020/10/30/1%2C
    Added Reference https://www.openwall.com/lists/oss-security/2020/11/04/3%2C
  • 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/2020/11/04/3%2C [No types assigned]
    Added Reference Red Hat, Inc. https://www.openwall.com/lists/oss-security/2020/10/30/1%2C [No types assigned]
    Added Reference Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C [No types assigned]
    Removed Reference Red Hat, Inc. https://www.openwall.com/lists/oss-security/2020/10/30/1,
    Removed Reference Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=1893287,
    Removed Reference Red Hat, Inc. https://www.openwall.com/lists/oss-security/2020/11/04/3,
    Removed CWE Red Hat, Inc. CWE-416
  • Reanalysis by [email protected]

    Oct. 05, 2023

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 4.4.242 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.242 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.204 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.155 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.75 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.9.5 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.242 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.242 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.204 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.155 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.75 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.9.5
  • Reanalysis by [email protected]

    Jul. 28, 2023

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.9.2:*:*:*:*:*:*:* OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 4.4.242 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.242 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.204 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.155 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.75 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.9.5
  • Reanalysis by [email protected]

    Aug. 05, 2022

    Action Type Old Value New Value
    Added CWE NIST CWE-662
  • Modified Analysis by [email protected]

    May. 13, 2022

    Action Type Old Value New Value
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1893287, Broken Link https://bugzilla.redhat.com/show_bug.cgi?id=1893287, Broken Link, Issue Tracking
    Changed Reference Type https://security.netapp.com/advisory/ntap-20210702-0005/ No Types Assigned https://security.netapp.com/advisory/ntap-20210702-0005/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
    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:a250_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:a250:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:500f_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:500f:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 02, 2021

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20210702-0005/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 04, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://www.openwall.com/lists/oss-security/2020/10/30/1 No Types Assigned http://www.openwall.com/lists/oss-security/2020/10/30/1 Exploit, Mailing List, Patch, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2020/11/04/3 No Types Assigned http://www.openwall.com/lists/oss-security/2020/11/04/3 Exploit, Mailing List, Patch, Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1893287, No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1893287, Broken Link
    Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220 Mailing List, 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/2020/10/30/1, No Types Assigned https://www.openwall.com/lists/oss-security/2020/10/30/1, Exploit, Mailing List, Patch, Third Party Advisory
    Changed Reference Type https://www.openwall.com/lists/oss-security/2020/11/04/3, No Types Assigned https://www.openwall.com/lists/oss-security/2020/11/04/3, Exploit, Mailing List, Patch, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.9.2:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-25668 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-2020-25668 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.00%

score

0.26634

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: