CVE-2020-6825

critical
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

Mozilla developers and community members Tyson Smith and Christian Holler reported memory safety bugs present in Firefox 74 and Firefox ESR 68.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.

References

https://www.mozilla.org/security/advisories/mfsa2020-13/

https://www.mozilla.org/security/advisories/mfsa2020-14/

https://www.mozilla.org/security/advisories/mfsa2020-12/

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1572541%2C1620193%2C1620203

https://usn.ubuntu.com/4335-1/

Details

Source: MITRE

Published: 2020-04-24

Updated: 2021-07-21

Type: CWE-119

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL

Tenable Plugins

View all (50 total)

IDNameProductFamilySeverity
150672SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14339-1)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
145974CentOS 8 : firefox (CESA-2020:1406)NessusCentOS Local Security Checks
critical
145858CentOS 8 : thunderbird (CESA-2020:1495)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
143928NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2020-0064)NessusNewStart CGSL Local Security Checks
critical
143912NewStart CGSL CORE 5.04 / MAIN 5.04 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0074)NessusNewStart CGSL Local Security Checks
critical
138776NewStart CGSL MAIN 6.01 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0036)NessusNewStart CGSL Local Security Checks
critical
137246RHEL 8 : firefox (RHSA-2020:1406)NessusRed Hat Local Security Checks
critical
137245RHEL 8 : firefox (RHSA-2020:1404)NessusRed Hat Local Security Checks
critical
136752Amazon Linux 2 : thunderbird (ALAS-2020-1429)NessusAmazon Linux Local Security Checks
critical
136194CentOS 7 : thunderbird (CESA-2020:1489)NessusCentOS Local Security Checks
critical
136017CentOS 6 : thunderbird (CESA-2020:1488)NessusCentOS Local Security Checks
critical
136016CentOS 6 : firefox (CESA-2020:1429)NessusCentOS Local Security Checks
critical
136007openSUSE Security Update : MozillaThunderbird (openSUSE-2020-544)NessusSuSE Local Security Checks
critical
135947GLSA-202004-11 : Mozilla Firefox: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
135896Ubuntu 16.04 LTS : Thunderbird vulnerabilities (USN-4335-1)NessusUbuntu Local Security Checks
critical
135845Scientific Linux Security Update : thunderbird on SL7.x x86_64 (20200416)NessusScientific Linux Local Security Checks
critical
135844Scientific Linux Security Update : firefox on SL7.x x86_64 (20200409)NessusScientific Linux Local Security Checks
critical
135747Oracle Linux 8 : thunderbird (ELSA-2020-1495)NessusOracle Linux Local Security Checks
critical
135716Scientific Linux Security Update : thunderbird on SL6.x i386/x86_64 (20200416)NessusScientific Linux Local Security Checks
critical
135715Oracle Linux 7 : thunderbird (ELSA-2020-1489)NessusOracle Linux Local Security Checks
critical
135692RHEL 8 : thunderbird (RHSA-2020:1495)NessusRed Hat Local Security Checks
critical
135691RHEL 8 : thunderbird (RHSA-2020:1496)NessusRed Hat Local Security Checks
critical
135687RHEL 6 : thunderbird (RHSA-2020:1488)NessusRed Hat Local Security Checks
critical
135684RHEL 7 : thunderbird (RHSA-2020:1489)NessusRed Hat Local Security Checks
critical
135578openSUSE Security Update : MozillaThunderbird (openSUSE-2020-520)NessusSuSE Local Security Checks
critical
135575Scientific Linux Security Update : firefox on SL6.x i386/x86_64 (20200414)NessusScientific Linux Local Security Checks
critical
135495Debian DLA-2172-1 : thunderbird security updateNessusDebian Local Security Checks
critical
135455Ubuntu 18.04 LTS / 19.10 : Thunderbird vulnerabilities (USN-4328-1)NessusUbuntu Local Security Checks
critical
135446openSUSE Security Update : MozillaFirefox (openSUSE-2020-493)NessusSuSE Local Security Checks
critical
135431Oracle Linux 7 : firefox (ELSA-2020-1420)NessusOracle Linux Local Security Checks
critical
135417Debian DSA-4656-1 : thunderbird - security updateNessusDebian Local Security Checks
critical
135415RHEL 6 : firefox (RHSA-2020:1429)NessusRed Hat Local Security Checks
critical
135413Mozilla Thunderbird < 68.7.0NessusWindows
critical
135412Mozilla Thunderbird < 68.7.0NessusMacOS X Local Security Checks
critical
135397SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:0978-1)NessusSuSE Local Security Checks
critical
135396SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:0971-1)NessusSuSE Local Security Checks
critical
135380Oracle Linux 8 : firefox (ELSA-2020-1406)NessusOracle Linux Local Security Checks
critical
135366Debian DSA-4655-1 : firefox-esr - security updateNessusDebian Local Security Checks
critical
135363Debian DLA-2170-1 : firefox-esr security updateNessusDebian Local Security Checks
critical
135288RHEL 7 : firefox (RHSA-2020:1420)NessusRed Hat Local Security Checks
critical
135284Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : firefox vulnerabilities (USN-4323-1)NessusUbuntu Local Security Checks
critical
135280Slackware 14.2 / current : mozilla-firefox (SSA:2020-098-01)NessusSlackware Local Security Checks
critical
135276Mozilla Firefox < 75.0 (mfsa2020-12)NessusWindows
critical
135275Mozilla Firefox < 75.0 Multiple Vulnerabilities (mfsa2020-12)NessusMacOS X Local Security Checks
critical
135274Mozilla Firefox ESR < 68.7 Multiple Vulnerabilities (mfsa2020-13)NessusWindows
critical
135273Mozilla Firefox ESR < 68.7 Multiple Vulnerabilities (mfsa2020-13)NessusMacOS X Local Security Checks
critical