CVE-2020-6807: Use After Free
First published: Tue Mar 10 2020(Updated: )
Last updated 24 July 2024
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox ESR | <68.6 | 68.6 |
| Mozilla Thunderbird | <68.6 | 68.6 |
| redhat/firefox | <68.6 | 68.6 |
| redhat/thunderbird | <68.6 | 68.6 |
| Mozilla Firefox | <74 | 74 |
| Mozilla Firefox | <74.0 | |
| Mozilla Firefox ESR | <68.6.0 | |
| Mozilla Thunderbird | <68.6.0 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.10 | |
| debian/firefox | 133.0.3-1 | |
| debian/firefox-esr | 115.14.0esr-1~deb11u1 128.5.0esr-1~deb11u1 128.3.1esr-1~deb12u1 128.5.0esr-1~deb12u1 128.5.0esr-1 128.5.1esr-1 | |
| debian/thunderbird | 1:115.12.0-1~deb11u1 1:128.5.0esr-1~deb11u1 1:115.16.0esr-1~deb12u1 1:128.5.0esr-1~deb12u1 1:128.5.2esr-1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1614971
- https://www.mozilla.org/security/advisories/mfsa2020-08/
- https://www.mozilla.org/security/advisories/mfsa2020-09/
- https://www.mozilla.org/security/advisories/mfsa2020-10/
- https://usn.ubuntu.com/4328-1/
- https://usn.ubuntu.com/4335-1/
- https://launchpad.net/bugs/cve/CVE-2020-6807
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-09/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-09/#CVE-2020-6807
- https://access.redhat.com/errata/RHSA-2020:0815
- https://access.redhat.com/errata/RHSA-2020:0816
- https://access.redhat.com/security/cve/cve-2020-6807
- https://access.redhat.com/errata/RHSA-2020:0819
- https://access.redhat.com/errata/RHSA-2020:0820
- https://access.redhat.com/errata/RHSA-2020:0905
- https://access.redhat.com/errata/RHSA-2020:0918
- https://access.redhat.com/errata/RHSA-2020:0919
- https://access.redhat.com/errata/RHSA-2020:0914
- https://bugzilla.redhat.com/show_bug.cgi?id=1812201
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6806
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6807
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6807
- https://security-tracker.debian.org/tracker/CVE-2020-6807
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6807
- https://nvd.nist.gov/vuln/detail/CVE-2020-6807
- https://ubuntu.com/security/CVE-2020-6807
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2020-6807?
CVE-2020-6807 is a vulnerability in Mozilla Firefox, Firefox ESR, and Thunderbird that could lead to a use-after-free and potentially exploitable crash.
How does CVE-2020-6807 occur?
CVE-2020-6807 occurs when a device is changed while a stream is being destroyed in Mozilla Firefox, Firefox ESR, or Thunderbird.
Which software versions are affected by CVE-2020-6807?
Mozilla Firefox version up to 74, Firefox ESR version up to 68.6, and Thunderbird version up to 68.6 are affected by CVE-2020-6807.
What is the severity of CVE-2020-6807?
CVE-2020-6807 is classified as high severity with a severity value of 7.
How can CVE-2020-6807 be fixed?
To fix CVE-2020-6807, users should update to the latest versions of Mozilla Firefox, Firefox ESR, or Thunderbird.
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