Homepage
About Snyk

Use After Free Affecting firefox-esr package, versions <78.5.0esr-1

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.24% (65th percentile)
Expand this section
NVD
8.8 high
Expand this section
Red Hat
8.8 high
Expand this section
SUSE
8.8 high

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOXESR-1041110
  • published 18 Nov 2020
  • disclosed 9 Dec 2020
Report a new vulnerability Found a mistake?

Introduced: 18 Nov 2020

CVE-2020-26960 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox-esr to version 78.5.0esr-1 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:unstable relevant fixed versions and status.

If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other pointers, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.