CVE-2020-6831

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

A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

References

https://www.mozilla.org/security/advisories/mfsa2020-17/

https://www.mozilla.org/security/advisories/mfsa2020-18/

https://www.mozilla.org/security/advisories/mfsa2020-16/

https://bugzilla.mozilla.org/show_bug.cgi?id=1632241

https://usn.ubuntu.com/4373-1/

https://security.gentoo.org/glsa/202005-03

https://security.gentoo.org/glsa/202005-04

https://www.debian.org/security/2020/dsa-4714

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.html

http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.html

Details

Source: MITRE

Published: 2020-05-26

Updated: 2021-07-21

Type: CWE-120

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 (60 total)

IDNameProductFamilySeverity
150555SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14359-1)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
145906CentOS 8 : thunderbird (CESA-2020:2046)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
139061Microsoft Edge (Chromium) < 81.0.416.72 Multiple VulnerabilitiesNessusWindows
critical
138990openSUSE Security Update : opera (openSUSE-2020-917)NessusSuSE Local Security Checks
critical
138776NewStart CGSL MAIN 6.01 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0036)NessusNewStart CGSL Local Security Checks
critical
138066Debian DSA-4714-1 : chromium - security updateNessusDebian Local Security Checks
critical
136894Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : Thunderbird vulnerabilities (USN-4373-1)NessusUbuntu Local Security Checks
critical
136888openSUSE Security Update : opera (openSUSE-2020-709)NessusSuSE Local Security Checks
critical
136776CentOS 7 : thunderbird (CESA-2020:2050)NessusCentOS Local Security Checks
critical
136775CentOS 6 : thunderbird (CESA-2020:2049)NessusCentOS Local Security Checks
critical
136773CentOS 7 : firefox (CESA-2020:2037)NessusCentOS Local Security Checks
critical
136772CentOS 6 : firefox (CESA-2020:2036)NessusCentOS Local Security Checks
critical
136752Amazon Linux 2 : thunderbird (ALAS-2020-1429)NessusAmazon Linux Local Security Checks
critical
136658SUSE SLED15 / SLES15 Security Update : MozillaThunderbird (SUSE-SU-2020:1225-1)NessusSuSE Local Security Checks
critical
136654SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:1218-1)NessusSuSE Local Security Checks
critical
136649SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:1209-1)NessusSuSE Local Security Checks
critical
136600Oracle Linux 8 : thunderbird (ELSA-2020-2046)NessusOracle Linux Local Security Checks
critical
136545Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : Firefox regression (USN-4353-2)NessusUbuntu Local Security Checks
critical
136543Oracle Linux 7 : thunderbird (ELSA-2020-2050)NessusOracle Linux Local Security Checks
critical
136541GLSA-202005-04 : Mozilla Firefox: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
136540GLSA-202005-03 : Mozilla Thunderbird: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
136487Scientific Linux Security Update : thunderbird on SL7.x x86_64 (20200511)NessusScientific Linux Local Security Checks
critical
136486Scientific Linux Security Update : thunderbird on SL6.x i386/x86_64 (20200511)NessusScientific Linux Local Security Checks
critical
136478RHEL 6 : chromium-browser (RHSA-2020:2064)NessusRed Hat Local Security Checks
critical
136477RHEL 6 : thunderbird (RHSA-2020:2049)NessusRed Hat Local Security Checks
critical
136476RHEL 8 : thunderbird (RHSA-2020:2046)NessusRed Hat Local Security Checks
critical
136475RHEL 7 : thunderbird (RHSA-2020:2050)NessusRed Hat Local Security Checks
critical
136471RHEL 8 : thunderbird (RHSA-2020:2047)NessusRed Hat Local Security Checks
critical
136470RHEL 8 : thunderbird (RHSA-2020:2048)NessusRed Hat Local Security Checks
critical
136461openSUSE Security Update : MozillaThunderbird (openSUSE-2020-643)NessusSuSE Local Security Checks
critical
136450openSUSE Security Update : MozillaFirefox (openSUSE-2020-621)NessusSuSE Local Security Checks
critical
136449openSUSE Security Update : chromium (openSUSE-2020-620)NessusSuSE Local Security Checks
critical
136431Debian DSA-4683-1 : thunderbird - security updateNessusDebian Local Security Checks
critical
136428Debian DLA-2206-1 : thunderbird security updateNessusDebian Local Security Checks
critical
136427Debian DLA-2205-1 : firefox-esr security updateNessusDebian Local Security Checks
critical
136420Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : firefox vulnerabilities (USN-4353-1)NessusUbuntu Local Security Checks
critical
136418Oracle Linux 7 : firefox (ELSA-2020-2037)NessusOracle Linux Local Security Checks
critical
136404Mozilla Firefox < 76.0NessusWindows
critical
136403Mozilla Firefox < 76.0NessusMacOS X Local Security Checks
critical
136392Slackware 14.2 / current : mozilla-firefox (SSA:2020-126-01)NessusSlackware Local Security Checks
critical
136390Scientific Linux Security Update : firefox on SL7.x x86_64 (20200506)NessusScientific Linux Local Security Checks
critical
136389Scientific Linux Security Update : firefox on SL6.x i386/x86_64 (20200506)NessusScientific Linux Local Security Checks
critical
136374Debian DSA-4678-1 : firefox-esr - security updateNessusDebian Local Security Checks
critical
136359Mozilla Thunderbird < 68.8.0NessusWindows
critical
136358Mozilla Thunderbird < 68.8.0NessusMacOS X Local Security Checks
critical
136357Mozilla Firefox ESR < 68.8NessusWindows
critical
136356Mozilla Firefox ESR < 68.8NessusMacOS X Local Security Checks
critical
136354RHEL 6 : firefox (RHSA-2020:2036)NessusRed Hat Local Security Checks
critical
136351RHEL 7 : firefox (RHSA-2020:2037)NessusRed Hat Local Security Checks
critical
136348Google Chrome < 81.0.4044.138 Multiple VulnerabilitiesNessusWindows
critical
136347Google Chrome < 81.0.4044.138 Multiple VulnerabilitiesNessusMacOS X Local Security Checks
critical
136344RHEL 8 : firefox (RHSA-2020:2033)NessusRed Hat Local Security Checks
critical
136343RHEL 8 : firefox (RHSA-2020:2032)NessusRed Hat Local Security Checks
critical
136342RHEL 8 : firefox (RHSA-2020:2031)NessusRed Hat Local Security Checks
critical