Use After Free Affecting firefox-esr package, versions <60.7.0esr-1~deb8u1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.41% (75th percentile)

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  • Snyk IDSNYK-DEBIAN8-FIREFOXESR-347133
  • published22 May 2019
  • disclosed23 Jul 2019

Introduced: 22 May 2019

CVE-2019-11691  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:8 firefox-esr to version 60.7.0esr-1~deb8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main thread to be called after it has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

CVSS Scores

version 3.1