CVE-2020-15673

Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. 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 Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.

• CWE-416

• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.htmlMailing List, Third Party Advisory
• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1648493%2C1660800Broken Link, Issue Tracking, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2020/10/msg00020.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202010-02Third Party Advisory
• https://www.debian.org/security/2020/dsa-4770Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-42/Release Notes, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-43/Release Notes, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-44/Release Notes, Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.htmlMailing List, Third Party Advisory
• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1648493%2C1660800Broken Link, Issue Tracking, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2020/10/msg00020.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202010-02Third Party Advisory
• https://www.debian.org/security/2020/dsa-4770Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-42/Release Notes, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-43/Release Notes, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-44/Release Notes, Vendor Advisory

Published

Oct 1, 2020

Last Modified

Jun 17, 2026

Status

Modified

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• CVE-2020-15667When processing a MAR update file, after the signature has b…8.8
• CVE-2020-15668A lock was missing when accessing a data structure and impor…4.3
• CVE-2020-15669When aborting an operation, such as a fetch, an abort signal…8.8
• CVE-2020-1567A remote code execution vulnerability exists in the way that…4.2
• CVE-2020-15670Mozilla developers reported memory safety bugs present in Fi…8.8
• CVE-2020-15671When typing in a password under certain conditions, a race m…3.1
• CVE-2020-15674Mozilla developers reported memory safety bugs present in Fi…8.8
• CVE-2020-15675When processing surfaces, the lifetime may outlive a persist…8.8
• CVE-2020-15676Firefox sometimes ran the onload handler for SVG elements th…6.1
• CVE-2020-15677By exploiting an Open Redirect vulnerability on a website, a…6.1
• CVE-2020-15678When recursing through graphical layers while scrolling, an …8.8
• CVE-2020-15679An OAuth session fixation vulnerability existed in the VPN l…7.6