CVE-2020-20445
Debian Security Advisory 4990-1
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/lpc.h, which allows a remote malicious user to cause a Denial of Service.
It was discovered that FFmpeg would attempt to divide by zero when using Linear Predictive Coding or AAC codecs. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. It was discovered that FFmpeg incorrectly handled certain input. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-08-13 CVE Reserved
- 2021-05-25 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-369: Divide By Zero
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://trac.ffmpeg.org/ticket/7996 | 2024-08-04 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.debian.org/security/2021/dsa-4990 | 2021-11-30 | |
| https://www.debian.org/security/2021/dsa-4998 | 2021-11-30 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Ffmpeg Search vendor "Ffmpeg" | Ffmpeg Search vendor "Ffmpeg" for product "Ffmpeg" | 4.2 Search vendor "Ffmpeg" for product "Ffmpeg" and version "4.2" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0" | - |
Affected
| ||||||