CVE-2020-27828

Publication date 11 December 2020

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

There's a flaw in jasper's jpc encoder in versions prior to 2.0.23. Crafted input provided to jasper by an attacker could cause an arbitrary out-of-bounds write. This could potentially affect data confidentiality, integrity, or application availability.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
jasper	20.10 groovy	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Fixed 1.900.1-debian1-2.4ubuntu1.3
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
jasper	Other: https://github.com/jasper-software/jasper/pull/253 Upstream: 4cd52b5

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.8 · High

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	7.8 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-4688-1
JasPer vulnerabilities
11 January 2021

Other references

https://www.cve.org/CVERecord?id=CVE-2020-27828