CVE-2018-18444

Publication date 17 October 2018

Last updated 25 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

makeMultiView.cpp in exrmultiview in OpenEXR 2.3.0 has an out-of-bounds write, leading to an assertion failure or possibly unspecified other impact.

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 2.2.1-4.1ubuntu0.1
	19.04 disco	Fixed 2.2.1-4.1ubuntu0.1
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Fixed 2.2.0-11.1ubuntu1.1
	16.04 LTS xenial	Fixed 2.2.0-10ubuntu2.1
	14.04 LTS trusty	Not in release

Notes

mdeslaur

proposed patch in bug The patch for this issue was dropped during the focal development cycle by mistake.

Patch details

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

Package	Patch details
openexr	Upstream: 4aa6a4e Upstream: 6a41400 Upstream: 119eb2d Upstream: 45f9912 Upstream: a7eec54 Upstream: ec64836

Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.8 · High

Base metrics

Parameter	Value
Attack vector	Network
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	8.8 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-4148-1
OpenEXR vulnerabilities
7 October 2019

USN-4339-1
OpenEXR vulnerabilities
27 April 2020

Other references

https://www.cve.org/CVERecord?id=CVE-2018-18444

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