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Vulnerabilities / CVE-2020-6814

critical

CVE-2020-6814

Mozilla: Memory safety bugs fixed in Firefox 74 and Firefox ESR 68.6

Published Modified CWE 787
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (high), Amazon (high), Oracle (high), Ubuntu (medium).

Description

Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. 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 < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

Affected packages and fixed versions

SourcePackageFixed in
alpine 3.11firefox-esr68.6.0-r0
alpine 3.12firefox, firefox-esr, mozjs6874.0-r0 and 1 more
alpine 3.13firefox, firefox-esr74.0-r0 and 1 more
alpine 3.14firefox, firefox-esr74.0-r0 and 1 more
alpine 3.15firefox, firefox-esr74.0-r0 and 1 more
alpine 3.16firefox, firefox-esr, thunderbird74.0-r0 and 1 more
alpine 3.17firefox, firefox-esr, thunderbird74.0-r0 and 1 more
alpine 3.18firefox, firefox-esr, thunderbird74.0-r0 and 1 more
alpine 3.19firefox, firefox-esr, thunderbird74.0-r0 and 1 more
alpine 3.20firefox, firefox-esr, thunderbird74.0-r0 and 1 more
alpine 3.21firefox, firefox-esr, librewolf and 1 more74.0-r0 and 1 more
alpine 3.22firefox, firefox-esr, librewolf and 1 more74.0-r0 and 1 more
Show all 87 entries from 39 sources
SourcePackageFixed in
alpine 3.11firefox-esr68.6.0-r0
alpine 3.12firefox74.0-r0
alpine 3.12firefox-esr68.6.0-r0
alpine 3.12mozjs6868.6.0-r0
alpine 3.13firefox74.0-r0
alpine 3.13firefox-esr68.6.0-r0
alpine 3.14firefox74.0-r0
alpine 3.14firefox-esr68.6.0-r0
alpine 3.15firefox74.0-r0
alpine 3.15firefox-esr68.6.0-r0
alpine 3.16firefox74.0-r0
alpine 3.16firefox-esr68.6.0-r0
alpine 3.16thunderbird68.6.0-r0
alpine 3.17firefox74.0-r0
alpine 3.17firefox-esr68.6.0-r0
alpine 3.17thunderbird68.6.0-r0
alpine 3.18firefox74.0-r0
alpine 3.18firefox-esr68.6.0-r0
alpine 3.18thunderbird68.6.0-r0
alpine 3.19firefox74.0-r0
alpine 3.19firefox-esr68.6.0-r0
alpine 3.19thunderbird68.6.0-r0
alpine 3.20firefox74.0-r0
alpine 3.20firefox-esr68.6.0-r0
alpine 3.20thunderbird68.6.0-r0
alpine 3.21firefox74.0-r0
alpine 3.21firefox-esr68.6.0-r0
alpine 3.21librewolf74.0-r0
alpine 3.21thunderbird68.6.0-r0
alpine 3.22firefox74.0-r0
alpine 3.22firefox-esr68.6.0-r0
alpine 3.22librewolf74.0-r0
alpine 3.22thunderbird68.6.0-r0
alpine 3.23firefox74.0-r0
alpine 3.23firefox-esr68.6.0-r0
alpine 3.23librewolf74.0-r0
alpine 3.23thunderbird68.6.0-r0
alpine 3.24librewolf74.0-r0
alpine edgelibrewolf74.0-r0
amazon linux 2thunderbird68.6.0-1.amzn2.0.1
amazon linux 2thunderbird-debuginfo68.6.0-1.amzn2.0.1
debian 10firefox-esr68.6.0esr-1~deb10u1
debian 10thunderbird1:68.6.0-1~deb10u1
debian 11firefox-esr68.6.0esr-1
debian 11thunderbird1:68.6.0-1
debian 12firefox-esr68.6.0esr-1
debian 12thunderbird1:68.6.0-1
debian 13firefox-esr68.6.0esr-1
debian 13thunderbird1:68.6.0-1
debian 14firefox-esr68.6.0esr-1
debian 14thunderbird1:68.6.0-1
debian 8firefox-esr68.6.0esr-1~deb8u1
debian 8thunderbird1:68.6.0-1~deb8u1
debian 9firefox-esr68.6.0esr-1~deb9u1
debian 9thunderbird1:68.6.0-1~deb9u1
echofirefox-esr68.6.0esr-1
echothunderbird1:68.6.0-1
Oracle Linux 6firefox68.6.0-1.0.1.el6_10
Oracle Linux 6thunderbird68.6.0-1.0.1.el6_10
Oracle Linux 7firefox68.6.0-1.0.1.el7_7
Oracle Linux 7thunderbird68.6.0-1.0.1.el7_7
Oracle Linux 8firefox68.6.0-1.0.1.el8_1
Oracle Linux 8thunderbird68.6.0-1.0.1.el8_1
ubuntu 16.04firefox74.0+build3-0ubuntu0.16.04.1
ubuntu 16.04thunderbird1:68.7.0+build1-0ubuntu0.16.04.2
ubuntu 18.04firefox74.0+build3-0ubuntu0.18.04.1
ubuntu 18.04thunderbird1:68.7.0+build1-0ubuntu0.18.04.1
ubuntu 19.10firefox74.0+build3-0ubuntu0.19.10.1
ubuntu 19.10thunderbird1:68.7.0+build1-0ubuntu0.19.10.1
ubuntu 20.04firefox74.0+build3-0ubuntu1
ubuntu 20.04thunderbird1:68.6.0+build2-0ubuntu1
ubuntu 20.10firefox74.0+build3-0ubuntu1
ubuntu 20.10thunderbird1:68.6.0+build2-0ubuntu1
ubuntu 21.04firefox74.0+build3-0ubuntu1
ubuntu 21.04thunderbird1:68.6.0+build2-0ubuntu1
ubuntu 21.10firefox74.0+build3-0ubuntu1
ubuntu 21.10thunderbird1:68.6.0+build2-0ubuntu1
ubuntu 22.04firefox74.0+build3-0ubuntu1
ubuntu 22.04thunderbird1:68.6.0+build2-0ubuntu1
ubuntu 22.10firefox74.0+build3-0ubuntu1
ubuntu 22.10thunderbird1:68.6.0+build2-0ubuntu1
ubuntu 23.04firefox74.0+build3-0ubuntu1
ubuntu 23.04thunderbird1:68.6.0+build2-0ubuntu1
ubuntu 23.10firefox74.0+build3-0ubuntu1
ubuntu 23.10thunderbird1:68.6.0+build2-0ubuntu1
ubuntu 24.04firefox74.0+build3-0ubuntu1
ubuntu 24.04thunderbird1:68.6.0+build2-0ubuntu1

References

All 16 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.