<p>Upgrade <code>Debian:unstable</code> <code>firefox</code> to version 67.0-2 or higher.</p>

Use After Free Affecting firefox package, versions <67.0-2

Snyk CVSS

Attack Complexity High

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS 0.24% (65^th percentile)

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Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-347270
published 22 May 2019
disclosed 23 Jul 2019

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Introduced: 22 May 2019

CVE-2019-9821 Open this link in a new tab CWE-416 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox to version 67.0-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A use-after-free vulnerability can occur in AssertWorkerThread due to a race condition with shared workers. This results in a potentially exploitable crash. This vulnerability affects Firefox < 67.