CVE-2020-27824

Published: 10 December 2020

A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest threat from this vulnerability is to system availability.

Priority

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package	Release	Status
openjpeg2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	hirsute	Released (2.3.1-1ubuntu5)
	bionic	Released (2.3.0-2+deb10u2build0.18.04.1)
	focal	Released (2.3.1-1ubuntu4.20.04.1)
	groovy	Released (2.3.1-1ubuntu4.20.10.1)
	impish	Released (2.3.1-1ubuntu5)
	jammy	Released (2.3.1-1ubuntu5)
	kinetic	Released (2.3.1-1ubuntu5)
	lunar	Released (2.3.1-1ubuntu5)
	upstream	Released (2.4.0)
	xenial	Released (2.1.2-1.1+deb9u6build0.16.04.1)
	mantic	Released (2.3.1-1ubuntu5)
	Patches: upstream: https://github.com/uclouvain/openjpeg/commit/6daf5f3e1ec6eff03b7982889874a3de6617db8d
texmaker Launchpad, Ubuntu, Debian	groovy	Ignored (end of life)
	kinetic	Ignored (end of life, was needs-triage)
	xenial	Needs triage
	impish	Ignored (end of life)
	bionic	Needs triage
	focal	Needs triage
	hirsute	Ignored (end of life)
	jammy	Needs triage
	lunar	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	mantic	Needs triage
blender Launchpad, Ubuntu, Debian	hirsute	Ignored (end of life)
	kinetic	Ignored (end of life, was needs-triage)
	xenial	Needs triage
	impish	Ignored (end of life)
	bionic	Needs triage
	focal	Needs triage
	groovy	Ignored (end of life)
	jammy	Needs triage
	lunar	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	mantic	Needs triage
insighttoolkit4 Launchpad, Ubuntu, Debian	hirsute	Ignored (end of life)
	kinetic	Ignored (end of life, was needs-triage)
	xenial	Needs triage
	impish	Ignored (end of life)
	bionic	Needs triage
	focal	Needs triage
	groovy	Ignored (end of life)
	jammy	Needs triage
	lunar	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	mantic	Does not exist
qtwebengine-opensource-src Launchpad, Ubuntu, Debian	hirsute	Ignored (end of life)
	kinetic	Ignored (end of life, was needs-triage)
	impish	Ignored (end of life)
	bionic	Needs triage
	focal	Needs triage
	groovy	Ignored (end of life)
	jammy	Needs triage
	lunar	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Needs triage
ghostscript Launchpad, Ubuntu, Debian	bionic	Released (9.26~dfsg+0-0ubuntu0.18.04.14)
	focal	Not vulnerable (uses system openjpeg2)
	groovy	Not vulnerable (uses system openjpeg2)
	hirsute	Not vulnerable (uses system openjpeg2)
	impish	Not vulnerable (uses system openjpeg2)
	jammy	Not vulnerable (uses system openjpeg2)
	kinetic	Not vulnerable (uses system openjpeg2)
	lunar	Not vulnerable (uses system openjpeg2)
	trusty	Does not exist
	upstream	Needs triage
	xenial	Released (9.26~dfsg+0-0ubuntu0.16.04.14)
	mantic	Not vulnerable (uses system openjpeg2)
openjpeg Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Needs triage
	upstream	Needs triage
	xenial	Released (1:1.5.2-3.1ubuntu0.1~esm2) Available with Ubuntu Pro
	mantic	Does not exist

Severity score breakdown

Parameter	Value
Base score	5.5
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Bugs

https://github.com/uclouvain/openjpeg/issues/1286

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›