CVE-2020-6805: Use After Free

Published Mar 10, 2020
·
Updated

Last updated 24 July 2024

Other sources

When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash.

Mozilla

Affected Software

14 affected componentsFixes available
redhat/firefox<68.6
68.6
redhat/thunderbird<68.6
68.6
Mozilla Firefox<74.0
Mozilla Firefox ESR<68.6.0
Mozilla Thunderbird<68.6.0
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=19.10
Mozilla Thunderbird<68.6
68.6
Mozilla Firefox<74
74
Mozilla Firefox ESR<68.6
68.6
debian/firefox
138.0.1-1
debian/firefox-esr
115.14.0esr-1~deb11u1128.9.0esr-1~deb11u1128.8.0esr-1~deb12u1128.10.0esr-1~deb12u1128.9.0esr-2128.10.0esr-1
debian/thunderbird
1:115.12.0-1~deb11u11:128.10.0esr-1~deb11u11:128.8.0esr-1~deb12u11:128.10.0esr-1~deb12u11:128.9.0esr-11:128.10.0esr-1

Event History

Mar 10, 2020
CVE Published
via Mozilla·12:00 AM
Mar 25, 2020
CVE Published
via MITRE·09:14 PM
Data Sourced
via MITRE·09:14 PM
DescriptionWeakness
Jan 11, 2024
Data Sourced
via Launchpad·11:51 PM
Description
Sep 16, 2024
Data Sourced
via Ubuntu·02:29 AM
RemedyDescriptionSeverityAffected Software
May 6, 2025
Data Sourced
via Debian·04:27 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2020-6805?

CVE-2020-6805 is a vulnerability in Mozilla Firefox, Firefox ESR, and Thunderbird that could lead to a potentially exploitable crash.

2

How severe is CVE-2020-6805?

CVE-2020-6805 is classified as a high severity vulnerability with a severity value of 7.

3

Which software versions are affected by CVE-2020-6805?

Mozilla Firefox versions up to exclusive 74, Firefox ESR versions up to exclusive 68.6, and Thunderbird versions up to exclusive 68.6 are affected by CVE-2020-6805.

4

How can CVE-2020-6805 be fixed?

To fix CVE-2020-6805, users should update to the latest versions of Mozilla Firefox, Firefox ESR, or Thunderbird, which have the necessary security patches.

5

Where can I find more information about CVE-2020-6805?

More information about CVE-2020-6805 can be found in the Mozilla Bugzilla and Mozilla security advisories (MFSA2020-08 and MFSA2020-10) linked in the references.

Contact

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CVE-2020-6805 - Use After Free - SecAlerts