CVE-2020-21606
Publication date 16 September 2021
Last updated 25 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
libde265 v1.0.4 contains a heap buffer overflow fault in the put_epel_16_fallback function, which can be exploited via a crafted a file.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| libde265 | 25.04 plucky | 
                                Not affected 
                                
                               | 
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Fixed 1.0.4-1ubuntu0.1 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | Not in release | 
Severity score breakdown
| Parameter | Value | 
|---|---|
| Base score |  | 
| Attack vector | Network | 
| Attack complexity | Low | 
| Privileges required | None | 
| User interaction | Required | 
| Scope | Unchanged | 
| Confidentiality | None | 
| Integrity impact | None | 
| Availability impact | High | 
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | 
References
Related Ubuntu Security Notices (USN)
- USN-6617-1
- libde265 vulnerabilities
- 30 January 2024