CVE-2020-6807

high
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/

https://www.mozilla.org/security/advisories/mfsa2020-09/

https://www.mozilla.org/security/advisories/mfsa2020-10/

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

Tenable Plugins

View all (50 total)

IDNameProductFamilySeverity
150547SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14312-1)NessusSuSE Local Security Checks
critical
147407NewStart CGSL MAIN 4.06 : firefox Multiple Vulnerabilities (NS-SA-2021-0004)NessusNewStart CGSL Local Security Checks
critical
147312NewStart CGSL MAIN 4.06 : thunderbird Multiple Vulnerabilities (NS-SA-2021-0002)NessusNewStart CGSL Local Security Checks
critical
145948CentOS 8 : thunderbird (CESA-2020:0919)NessusCentOS Local Security Checks
critical
145866CentOS 8 : firefox (CESA-2020:0820)NessusCentOS Local Security Checks
critical
143979NewStart CGSL CORE 5.05 / MAIN 5.05 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0093)NessusNewStart CGSL Local Security Checks
critical
143948NewStart CGSL CORE 5.05 / MAIN 5.05 : firefox Multiple Vulnerabilities (NS-SA-2020-0097)NessusNewStart CGSL Local Security Checks
critical
141402NewStart CGSL CORE 5.04 / MAIN 5.04 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0042)NessusNewStart CGSL Local Security Checks
critical
140292NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2020-0039)NessusNewStart CGSL Local Security Checks
critical
140291NewStart CGSL MAIN 4.05 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0046)NessusNewStart CGSL Local Security Checks
critical
140283NewStart CGSL MAIN 4.05 : firefox Multiple Vulnerabilities (NS-SA-2020-0047)NessusNewStart CGSL Local Security Checks
critical
135932Amazon Linux 2 : thunderbird (ALAS-2020-1414)NessusAmazon Linux Local Security Checks
critical
135896Ubuntu 16.04 LTS : Thunderbird vulnerabilities (USN-4335-1)NessusUbuntu Local Security Checks
critical
135455Ubuntu 18.04 LTS / 19.10 : Thunderbird vulnerabilities (USN-4328-1)NessusUbuntu Local Security Checks
critical
134914CentOS 6 : thunderbird (CESA-2020:0914)NessusCentOS Local Security Checks
critical
134911CentOS 7 : thunderbird (CESA-2020:0905)NessusCentOS Local Security Checks
critical
134901CentOS 6 : firefox (CESA-2020:0816)NessusCentOS Local Security Checks
critical
134900CentOS 7 : firefox (CESA-2020:0815)NessusCentOS Local Security Checks
critical
134886Oracle Linux 8 : thunderbird (ELSA-2020-0919)NessusOracle Linux Local Security Checks
critical
134869RHEL 6 : thunderbird (RHSA-2020:0914)NessusRed Hat Local Security Checks
critical
134868RHEL 8 : thunderbird (RHSA-2020:0918)NessusRed Hat Local Security Checks
critical
134867RHEL 8 : thunderbird (RHSA-2020:0919)NessusRed Hat Local Security Checks
critical
134848Scientific Linux Security Update : thunderbird on SL6.x i386/x86_64 (20200323)NessusScientific Linux Local Security Checks
critical
134838RHEL 8 : firefox (RHSA-2020:0819)NessusRed Hat Local Security Checks
critical
134831RHEL 7 : thunderbird (RHSA-2020:0905)NessusRed Hat Local Security Checks
critical
134823openSUSE Security Update : MozillaThunderbird (openSUSE-2020-366)NessusSuSE Local Security Checks
critical
134772Debian DSA-4642-1 : thunderbird - security updateNessusDebian Local Security Checks
critical
134767Debian DLA-2150-1 : thunderbird security updateNessusDebian Local Security Checks
critical
134756SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:0717-1)NessusSuSE Local Security Checks
critical
134754Scientific Linux Security Update : thunderbird on SL7.x x86_64 (20200319)NessusScientific Linux Local Security Checks
critical
134753Oracle Linux 7 : thunderbird (ELSA-2020-0905)NessusOracle Linux Local Security Checks
critical
134667RHEL 8 : firefox (RHSA-2020:0820)NessusRed Hat Local Security Checks
critical
134666RHEL 6 : firefox (RHSA-2020:0816)NessusRed Hat Local Security Checks
critical
134665RHEL 7 : firefox (RHSA-2020:0815)NessusRed Hat Local Security Checks
critical
134647Scientific Linux Security Update : firefox on SL7.x x86_64 (20200316)NessusScientific Linux Local Security Checks
critical
134646Scientific Linux Security Update : firefox on SL6.x i386/x86_64 (20200316)NessusScientific Linux Local Security Checks
critical
134644Oracle Linux 7 : firefox (ELSA-2020-0815)NessusOracle Linux Local Security Checks
critical
134623SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:0686-1)NessusSuSE Local Security Checks
critical
134617openSUSE Security Update : MozillaFirefox (openSUSE-2020-340)NessusSuSE Local Security Checks
critical
134616Slackware 14.2 / current : mozilla-thunderbird (SSA:2020-073-01)NessusSlackware Local Security Checks
critical
134587GLSA-202003-10 : Mozilla Thunderbird: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
134469GLSA-202003-02 : Mozilla Firefox: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
134442Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : Firefox vulnerabilities (USN-4299-1)NessusUbuntu Local Security Checks
critical
134434Debian DSA-4639-1 : firefox-esr - security updateNessusDebian Local Security Checks
critical
134432Debian DLA-2140-1 : firefox-esr security updateNessusDebian Local Security Checks
critical
134407Mozilla Firefox ESR < 68.6 Multiple VulnerabilitiesNessusWindows
critical
134406Mozilla Firefox ESR < 68.6 Multiple VulnerabilitiesNessusMacOS X Local Security Checks
critical
134405Mozilla Firefox < 74.0 Multiple VulnerabilitiesNessusWindows
critical
134404Mozilla Firefox < 74.0 Multiple VulnerabilitiesNessusMacOS X Local Security Checks
critical
134396Slackware 14.2 / current : mozilla-firefox (SSA:2020-070-01)NessusSlackware Local Security Checks
critical