9.8
CRITICAL
CVE-2020-9366
Apache GNU Screen Buffer Overflow Vulnerability
Description

A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output, or a special program, could corrupt memory and crash Screen or possibly have unspecified other impact.

INFO

Published Date :

Feb. 24, 2020, 5:15 p.m.

Last Modified :

Jan. 1, 2022, 7:22 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2020-9366 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 Gnu screen
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-2020-9366.

URL Resource
http://www.openwall.com/lists/oss-security/2020/02/25/1 Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html Mailing List Patch Release Notes Vendor Advisory
https://security.gentoo.org/glsa/202003-62 Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/02/06/3 Mailing List Patch Release Notes

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-2020-9366 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-9366 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
  • Modified Analysis by [email protected]

    Jan. 01, 2022

    Action Type Old Value New Value
    Changed Reference Type https://security.gentoo.org/glsa/202003-62 No Types Assigned https://security.gentoo.org/glsa/202003-62 Third Party Advisory
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-120 CWE-787
  • CVE Modified by [email protected]

    Mar. 30, 2020

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202003-62 [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 25, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://www.openwall.com/lists/oss-security/2020/02/25/1 No Types Assigned http://www.openwall.com/lists/oss-security/2020/02/25/1 Mailing List, Third Party Advisory
    Changed Reference Type https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html No Types Assigned https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html Mailing List, Patch, Release Notes, Vendor Advisory
    Changed Reference Type https://www.openwall.com/lists/oss-security/2020/02/06/3 No Types Assigned https://www.openwall.com/lists/oss-security/2020/02/06/3 Mailing List, Patch, Release Notes
    Added CWE NIST CWE-120
    Added CPE Configuration OR *cpe:2.3:a:gnu:screen:*:*:*:*:*:*:*:* versions up to (excluding) 4.8.0
  • CVE Modified by [email protected]

    Feb. 25, 2020

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2020/02/25/1 [No Types Assigned]
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-2020-9366 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-2020-9366 weaknesses.

Exploit Prediction

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

0.43 }} 0.03%

score

0.71677

percentile

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