5.9
MEDIUM
CVE-2020-8649
Linux Kernel Caveable Use-After-Free Vulnerability in VGA Console
Description

There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.

INFO

Published Date :

Feb. 6, 2020, 1:15 a.m.

Last Modified :

Nov. 21, 2024, 5:39 a.m.

Remotely Exploitable :

No

Impact Score :

5.2

Exploitability Score :

0.7
Public PoC/Exploit Available at Github

CVE-2020-8649 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-2020-8649 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 Linux linux_kernel
1 Debian debian_linux
1 Opensuse leap
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-2020-8649.

URL Resource
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=206357 Exploit Issue Tracking Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html Mailing List Third Party Advisory
https://www.debian.org/security/2020/dsa-4698 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=206357 Exploit Issue Tracking Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html Mailing List Third Party Advisory
https://www.debian.org/security/2020/dsa-4698 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

Updated: 1 year, 11 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 5, 2022, 12:07 p.m. This repo has been linked 1276 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-2020-8649 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-8649 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://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html
    Added Reference https://bugzilla.kernel.org/show_bug.cgi?id=206357
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
    Added Reference https://www.debian.org/security/2020/dsa-4698
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Dec. 30, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html Mailing List, Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2020/dsa-4698 No Types Assigned https://www.debian.org/security/2020/dsa-4698 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jun. 10, 2020

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2020/dsa-4698 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 10, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html [No Types Assigned]
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 10, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html [No Types Assigned]
  • Reanalysis by [email protected]

    Apr. 07, 2020

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Mar. 31, 2020

    Action Type Old Value New Value
    Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
    Added CVSS V3.1 NIST AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 27, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 06, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
    Changed Reference Type https://bugzilla.kernel.org/show_bug.cgi?id=206357 No Types Assigned https://bugzilla.kernel.org/show_bug.cgi?id=206357 Exploit, Issue Tracking, Vendor Advisory
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.5.2
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-2020-8649 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-2020-8649 weaknesses.

Exploit Prediction

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

0.08 }} 0.02%

score

0.35021

percentile

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