Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2020-21596 First vendor Publication 2021-09-16
Vendor Cve Last vendor Modification 2023-02-22

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

libde265 v1.0.4 contains a global buffer overflow in the decode_CABAC_bit function, which can be exploited via a crafted a file.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21596

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2023/dsa-5346
MISC https://github.com/strukturag/libde265/issues/236
MLIST https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html

Alert History

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Date Informations
2023-02-22 21:27:30
  • Multiple Updates
2023-02-11 17:27:29
  • Multiple Updates
2023-01-27 00:27:39
  • Multiple Updates
2022-11-02 21:28:54
  • Multiple Updates
2021-09-28 00:22:58
  • Multiple Updates
2021-09-17 17:22:50
  • Multiple Updates
2021-09-17 05:22:49
  • First insertion