CVE-2020-6807high
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
When a device was changed while a stream was about to be destroyed, the <code>stream-reinit</code> task may have been executed after the stream was destroyed, causing a use-after-free and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1614971
https://usn.ubuntu.com/4328-1/
https://usn.ubuntu.com/4335-1/
https://www.mozilla.org/security/advisories/mfsa2020-08/
Details
Source: MITRE
Published: 2020-03-25
Updated: 2020-04-22
Type: CWE-416
Risk Information
CVSS v2
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
CVSS v3
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH
Vulnerable Software
Configuration 1
OR
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 150547 | SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14312-1) | Nessus | SuSE Local Security Checks | critical |
| 147407 | NewStart CGSL MAIN 4.06 : firefox Multiple Vulnerabilities (NS-SA-2021-0004) | Nessus | NewStart CGSL Local Security Checks | critical |
| 147312 | NewStart CGSL MAIN 4.06 : thunderbird Multiple Vulnerabilities (NS-SA-2021-0002) | Nessus | NewStart CGSL Local Security Checks | critical |
| 145948 | CentOS 8 : thunderbird (CESA-2020:0919) | Nessus | CentOS Local Security Checks | critical |
| 145866 | CentOS 8 : firefox (CESA-2020:0820) | Nessus | CentOS Local Security Checks | critical |
| 143979 | NewStart CGSL CORE 5.05 / MAIN 5.05 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0093) | Nessus | NewStart CGSL Local Security Checks | critical |
| 143948 | NewStart CGSL CORE 5.05 / MAIN 5.05 : firefox Multiple Vulnerabilities (NS-SA-2020-0097) | Nessus | NewStart CGSL Local Security Checks | critical |
| 141402 | NewStart CGSL CORE 5.04 / MAIN 5.04 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0042) | Nessus | NewStart CGSL Local Security Checks | critical |
| 140292 | NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2020-0039) | Nessus | NewStart CGSL Local Security Checks | critical |
| 140291 | NewStart CGSL MAIN 4.05 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0046) | Nessus | NewStart CGSL Local Security Checks | critical |
| 140283 | NewStart CGSL MAIN 4.05 : firefox Multiple Vulnerabilities (NS-SA-2020-0047) | Nessus | NewStart CGSL Local Security Checks | critical |
| 135932 | Amazon Linux 2 : thunderbird (ALAS-2020-1414) | Nessus | Amazon Linux Local Security Checks | critical |
| 135896 | Ubuntu 16.04 LTS : Thunderbird vulnerabilities (USN-4335-1) | Nessus | Ubuntu Local Security Checks | critical |
| 135455 | Ubuntu 18.04 LTS / 19.10 : Thunderbird vulnerabilities (USN-4328-1) | Nessus | Ubuntu Local Security Checks | critical |
| 134914 | CentOS 6 : thunderbird (CESA-2020:0914) | Nessus | CentOS Local Security Checks | critical |
| 134911 | CentOS 7 : thunderbird (CESA-2020:0905) | Nessus | CentOS Local Security Checks | critical |
| 134901 | CentOS 6 : firefox (CESA-2020:0816) | Nessus | CentOS Local Security Checks | critical |
| 134900 | CentOS 7 : firefox (CESA-2020:0815) | Nessus | CentOS Local Security Checks | critical |
| 134886 | Oracle Linux 8 : thunderbird (ELSA-2020-0919) | Nessus | Oracle Linux Local Security Checks | critical |
| 134869 | RHEL 6 : thunderbird (RHSA-2020:0914) | Nessus | Red Hat Local Security Checks | critical |
| 134868 | RHEL 8 : thunderbird (RHSA-2020:0918) | Nessus | Red Hat Local Security Checks | critical |
| 134867 | RHEL 8 : thunderbird (RHSA-2020:0919) | Nessus | Red Hat Local Security Checks | critical |
| 134848 | Scientific Linux Security Update : thunderbird on SL6.x i386/x86_64 (20200323) | Nessus | Scientific Linux Local Security Checks | critical |
| 134838 | RHEL 8 : firefox (RHSA-2020:0819) | Nessus | Red Hat Local Security Checks | critical |
| 134831 | RHEL 7 : thunderbird (RHSA-2020:0905) | Nessus | Red Hat Local Security Checks | critical |
| 134823 | openSUSE Security Update : MozillaThunderbird (openSUSE-2020-366) | Nessus | SuSE Local Security Checks | critical |
| 134772 | Debian DSA-4642-1 : thunderbird - security update | Nessus | Debian Local Security Checks | critical |
| 134767 | Debian DLA-2150-1 : thunderbird security update | Nessus | Debian Local Security Checks | critical |
| 134756 | SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:0717-1) | Nessus | SuSE Local Security Checks | critical |
| 134754 | Scientific Linux Security Update : thunderbird on SL7.x x86_64 (20200319) | Nessus | Scientific Linux Local Security Checks | critical |
| 134753 | Oracle Linux 7 : thunderbird (ELSA-2020-0905) | Nessus | Oracle Linux Local Security Checks | critical |
| 134667 | RHEL 8 : firefox (RHSA-2020:0820) | Nessus | Red Hat Local Security Checks | critical |
| 134666 | RHEL 6 : firefox (RHSA-2020:0816) | Nessus | Red Hat Local Security Checks | critical |
| 134665 | RHEL 7 : firefox (RHSA-2020:0815) | Nessus | Red Hat Local Security Checks | critical |
| 134647 | Scientific Linux Security Update : firefox on SL7.x x86_64 (20200316) | Nessus | Scientific Linux Local Security Checks | critical |
| 134646 | Scientific Linux Security Update : firefox on SL6.x i386/x86_64 (20200316) | Nessus | Scientific Linux Local Security Checks | critical |
| 134644 | Oracle Linux 7 : firefox (ELSA-2020-0815) | Nessus | Oracle Linux Local Security Checks | critical |
| 134623 | SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:0686-1) | Nessus | SuSE Local Security Checks | critical |
| 134617 | openSUSE Security Update : MozillaFirefox (openSUSE-2020-340) | Nessus | SuSE Local Security Checks | critical |
| 134616 | Slackware 14.2 / current : mozilla-thunderbird (SSA:2020-073-01) | Nessus | Slackware Local Security Checks | critical |
| 134587 | GLSA-202003-10 : Mozilla Thunderbird: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | critical |
| 134469 | GLSA-202003-02 : Mozilla Firefox: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | critical |
| 134442 | Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : Firefox vulnerabilities (USN-4299-1) | Nessus | Ubuntu Local Security Checks | critical |
| 134434 | Debian DSA-4639-1 : firefox-esr - security update | Nessus | Debian Local Security Checks | critical |
| 134432 | Debian DLA-2140-1 : firefox-esr security update | Nessus | Debian Local Security Checks | critical |
| 134407 | Mozilla Firefox ESR < 68.6 Multiple Vulnerabilities | Nessus | Windows | critical |
| 134406 | Mozilla Firefox ESR < 68.6 Multiple Vulnerabilities | Nessus | MacOS X Local Security Checks | critical |
| 134405 | Mozilla Firefox < 74.0 Multiple Vulnerabilities | Nessus | Windows | critical |
| 134404 | Mozilla Firefox < 74.0 Multiple Vulnerabilities | Nessus | MacOS X Local Security Checks | critical |
| 134396 | Slackware 14.2 / current : mozilla-firefox (SSA:2020-070-01) | Nessus | Slackware Local Security Checks | critical |