CVE-2018-5146

Publication date 16 March 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An out of bounds memory write while processing Vorbis audio data was reported through the Pwn2Own contest. This vulnerability affects Firefox < 59.0.1, Firefox ESR < 52.7.2, and Thunderbird < 52.7.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	18.04 LTS bionic	Not affected
	17.10 artful	Fixed in 59.0.1+build1-0ubuntu0.17.10.1
	16.04 LTS xenial	Fixed in 59.0.1+build1-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed in 59.0.1+build1-0ubuntu0.14.04.1
firefox-esr	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
libvorbis	18.04 LTS bionic	Not affected
	17.10 artful	Fixed in 1.3.5-4ubuntu0.2
	16.04 LTS xenial	Fixed in 1.3.5-3ubuntu0.2
	14.04 LTS trusty	Fixed in 1.3.2-1.3ubuntu1.2
thunderbird	18.04 LTS bionic	Fixed in 1:52.7.0+build1-0ubuntu1
	17.10 artful	Fixed in 1:52.7.0+build1-0ubuntu0.17.10.1
	16.04 LTS xenial	Fixed in 1:52.7.0+build1-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed in 1:52.7.0+build1-0ubuntu0.14.04.1

Patch details

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

Package	Patch details
libvorbis	Upstream: https://git.xiph.org/?p=vorbis.git;a=commit;h=667ceb4aab60c1f74060143bb24e5f427b3cce5f

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-3599-1
Firefox vulnerability
16 March 2018

USN-3545-1
Thunderbird vulnerabilities
29 March 2018

USN-3604-1
libvorbis vulnerability
22 March 2018