CVE-2020-11759

Publication date 14 April 2020

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered in OpenEXR before 2.4.1. Because of integer overflows in CompositeDeepScanLine::Data::handleDeepFrameBuffer and readSampleCountForLineBlock, an attacker can write to an out-of-bounds pointer.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openexr	20.04 LTS focal	Fixed 2.3.0-6ubuntu0.1
	19.10 eoan	Fixed 2.2.1-4.1ubuntu1.1
	18.04 LTS bionic	Fixed 2.2.0-11.1ubuntu1.2
	16.04 LTS xenial	Fixed 2.2.0-10ubuntu2.2
	14.04 LTS trusty	Not in release

Notes

mdeslaur

can't locate changes to readSampleCountForLineBlock, need to check if list of commits is complete

Patch details

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

Package	Patch details
openexr	Upstream: b9997d0 Upstream: acad98d

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
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

Related Ubuntu Security Notices (USN)

USN-4339-1
OpenEXR vulnerabilities
27 April 2020