CVE-2020-12421

medium
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 performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1308251

https://security.gentoo.org/glsa/202007-09

https://security.gentoo.org/glsa/202007-10

https://usn.ubuntu.com/4421-1/

https://www.mozilla.org/security/advisories/mfsa2020-24/

https://www.mozilla.org/security/advisories/mfsa2020-25/

https://www.mozilla.org/security/advisories/mfsa2020-26/

Details

Source: MITRE

Published: 2020-07-09

Updated: 2020-07-27

Type: CWE-295

Risk Information

CVSS v2

Base Score: 4.3

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

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.5

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

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM

Tenable Plugins

View all (50 total)

IDNameProductFamilySeverity
150683SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14421-1)NessusSuSE Local Security Checks
high
147407NewStart CGSL MAIN 4.06 : firefox Multiple Vulnerabilities (NS-SA-2021-0004)NessusNewStart CGSL Local Security Checks
critical
147331NewStart CGSL MAIN 6.02 : thunderbird Multiple Vulnerabilities (NS-SA-2021-0056)NessusNewStart CGSL Local Security Checks
high
147312NewStart CGSL MAIN 4.06 : thunderbird Multiple Vulnerabilities (NS-SA-2021-0002)NessusNewStart CGSL Local Security Checks
critical
146025CentOS 8 : firefox (CESA-2020:2828)NessusCentOS Local Security Checks
high
144001NewStart CGSL CORE 5.04 / MAIN 5.04 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0083)NessusNewStart CGSL Local Security Checks
high
143966NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2020-0081)NessusNewStart CGSL Local Security Checks
high
139041RHEL 8 : thunderbird (RHSA-2020:3038)NessusRed Hat Local Security Checks
high
138976Oracle Linux 8 : thunderbird (ELSA-2020-3038)NessusOracle Linux Local Security Checks
high
138933GLSA-202007-10 : Mozilla Firefox: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
138932GLSA-202007-09 : Mozilla Thunderbird: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
138857Amazon Linux 2 : thunderbird (ALAS-2020-1468)NessusAmazon Linux Local Security Checks
high
138811RHEL 8 : thunderbird (RHSA-2020:3046)NessusRed Hat Local Security Checks
high
138786openSUSE Security Update : MozillaFirefox (openSUSE-2020-1017)NessusSuSE Local Security Checks
high
138747openSUSE Security Update : MozillaFirefox (openSUSE-2020-983)NessusSuSE Local Security Checks
high
138746openSUSE Security Update : MozillaThunderbird (openSUSE-2020-982)NessusSuSE Local Security Checks
high
138742openSUSE Security Update : MozillaThunderbird (openSUSE-2020-967)NessusSuSE Local Security Checks
high
138662Oracle Linux 6 : thunderbird (ELSA-2020-2966)NessusOracle Linux Local Security Checks
high
138589Mozilla Thunderbird < 78.0NessusWindows
high
138588Mozilla Thunderbird < 78.0NessusMacOS X Local Security Checks
high
138586Scientific Linux Security Update : thunderbird on SL6.x i386/x86_64 (20200716)NessusScientific Linux Local Security Checks
high
138559RHEL 6 : thunderbird (RHSA-2020:2966)NessusRed Hat Local Security Checks
high
138494SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:1899-1)NessusSuSE Local Security Checks
high
138493SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:1898-1)NessusSuSE Local Security Checks
high
138489Scientific Linux Security Update : thunderbird on SL7.x x86_64 (20200714)NessusScientific Linux Local Security Checks
high
138487Oracle Linux 7 : thunderbird (ELSA-2020-2906)NessusOracle Linux Local Security Checks
high
138450RHEL 8 : thunderbird (RHSA-2020:2907)NessusRed Hat Local Security Checks
high
138447RHEL 7 : thunderbird (RHSA-2020:2906)NessusRed Hat Local Security Checks
high
138378CentOS 6 : firefox (CESA-2020:2824)NessusCentOS Local Security Checks
high
138377CentOS 7 : firefox (CESA-2020:2827)NessusCentOS Local Security Checks
high
138326Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : Thunderbird vulnerabilities (USN-4421-1)NessusUbuntu Local Security Checks
high
138246Oracle Linux 8 : firefox (ELSA-2020-2828)NessusOracle Linux Local Security Checks
high
138206Scientific Linux Security Update : firefox on SL7.x x86_64 (20200707)NessusScientific Linux Local Security Checks
high
138205Scientific Linux Security Update : firefox on SL6.x i386/x86_64 (20200707)NessusScientific Linux Local Security Checks
high
138204Oracle Linux 7 : firefox (ELSA-2020-2827)NessusOracle Linux Local Security Checks
high
138203Oracle Linux 6 : firefox (ELSA-2020-2824)NessusOracle Linux Local Security Checks
high
138145RHEL 6 : firefox (RHSA-2020:2824)NessusRed Hat Local Security Checks
high
138144RHEL 7 : firefox (RHSA-2020:2827)NessusRed Hat Local Security Checks
high
138143RHEL 8 : firefox (RHSA-2020:2828)NessusRed Hat Local Security Checks
high
138142RHEL 8 : firefox (RHSA-2020:2826)NessusRed Hat Local Security Checks
high
138141RHEL 8 : firefox (RHSA-2020:2825)NessusRed Hat Local Security Checks
high
138133Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : Firefox vulnerabilities (USN-4408-1)NessusUbuntu Local Security Checks
high
138107Debian DSA-4718-1 : thunderbird - security updateNessusDebian Local Security Checks
high
138096Mozilla Thunderbird < 68.10.0NessusWindows
high
138095Mozilla Thunderbird < 68.10.0NessusMacOS X Local Security Checks
high
138085Mozilla Firefox < 78.0NessusWindows
high
138084Mozilla Firefox < 78.0NessusMacOS X Local Security Checks
high
138083Mozilla Firefox ESR < 68.10NessusWindows
high
138082Mozilla Firefox ESR < 68.10NessusMacOS X Local Security Checks
high
138065Debian DSA-4713-1 : firefox-esr - security updateNessusDebian Local Security Checks
high