CVE-2020-21595

Publication date 16 September 2021

Last updated 25 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

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

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libde265	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Ignored end of life, was needs-triage
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Not affected
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.04 LTS focal	Fixed 1.0.4-1ubuntu0.1
	18.04 LTS bionic	Fixed 1.0.2-2ubuntu0.18.04.1~esm1
	16.04 LTS xenial	Fixed 1.0.2-2ubuntu0.16.04.1~esm1
	14.04 LTS trusty	Not in release

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Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
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