Mozilla Firefox und Thunderbird: Mehrere Schwachstellen

Summary

Product

Vulnerabilities 21

• Critical 9.6
  CVE-2020-15999 Exploited Public exploit EPSS 64%

  Heap buffer overflow in CefSharp

  Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

  Google Chrome chromium-browser firefox-esr Browsers Debian Ubuntu Azure Linux Alpine NuGet
  Nov 3, 2020

  KEV Nov 3, 2021
• Unscored —
  CVE-2020-16012 Public exploit

  Side-channel information leakage in graphics in Google Chrome prior to 87.0.4280.66 allowed a remote attacker to leak c…

  Google Chrome chromium chromium-browser Browsers Debian Ubuntu Alpine
  Jan 8, 2021
• Unscored —
  CVE-2020-26951

  A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitizat…

  Mozilla Firefox Thunderbird Firefox ESR Browsers Debian Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26952

  Incorrect bookkeeping of functions inlined during JIT compilation could have led to memory corruption and a potentially…

  Mozilla Firefox mozjs38 mozjs52 Browsers Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26953

  It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possib…

  Mozilla Firefox Thunderbird Firefox ESR Browsers Debian Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26954

  When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file…

  Mozilla Firefox mozjs38 mozjs52 Browsers Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26955

  When a user downloaded a file in Firefox for Android, if a cookie is set, it would have been re-sent during a subsequen…

  Mozilla Firefox mozjs38 mozjs52 Browsers Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26956

  In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to …

  Mozilla Firefox Thunderbird Firefox ESR Browsers Debian Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26957

  OneCRL was non-functional in the new Firefox for Android due to a missing service initialization. This could result in …

  Mozilla Firefox mozjs38 mozjs52 Browsers Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26958

  Firefox did not block execution of scripts with incorrect MIME types when the response was intercepted and cached throu…

  Mozilla Firefox Thunderbird Firefox ESR Browsers Debian Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26959

  During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-aft…

  Mozilla Firefox Thunderbird Firefox ESR Browsers Debian Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26960

  If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other pointer…

  Mozilla Firefox Thunderbird Firefox ESR Browsers Debian Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26961

  When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do no…

  Mozilla Firefox Thunderbird Firefox ESR Browsers Debian Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26962

  Cross-origin iframes that contained a login form could have been recognized by the login autofill service, and populate…

  Mozilla Firefox mozjs38 mozjs52 Browsers Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26963

  Repeated calls to the history and location interfaces could have been used to hang the browser. This was addressed by i…

  Mozilla Firefox mozjs38 mozjs52 Browsers Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26964

  If the Remote Debugging via USB feature was enabled in Firefox for Android on an Android version prior to Android 6.0, …

  Mozilla Firefox mozjs38 mozjs52 Browsers Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26965

  Some websites have a feature "Show Password" where clicking a button will change a password field into a textbook field…

  Mozilla Firefox Thunderbird Firefox ESR Browsers Debian Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26966

  Searching for a single word from the address bar caused an mDNS request to be sent on the local network searching for a…

  Mozilla Firefox Thunderbird Firefox ESR Browsers Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26967

  When listening for page changes with a Mutation Observer, a malicious web page could confuse Firefox Screenshots into i…

  Mozilla Firefox mozjs38 mozjs52 Browsers Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26968

  Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4. Some of these bugs showed ev…

  Mozilla Firefox Thunderbird Firefox ESR Browsers Debian Ubuntu Alpine
  Dec 9, 2020
• Unscored —
  CVE-2020-26969

  Mozilla developers reported memory safety bugs present in Firefox 82. Some of these bugs showed evidence of memory corr…

  Mozilla Firefox mozjs38 mozjs52 Browsers Ubuntu Alpine
  Dec 9, 2020

Revision history

1. 2026-02-08 #13

   PoC aufgenommen

2. 2020-12-09 #12

   Neue Updates von CentOS aufgenommen

3. 2020-12-06 #11

   Neue Updates von Gentoo aufgenommen

4. 2020-12-01 #10

   Neue Updates von Oracle Linux und Red Hat aufgenommen

5. 2020-11-30 #9

   Neue Updates von Oracle Linux und Red Hat aufgenommen

6. 2020-11-29 #8

   Neue Updates von SUSE und Red Hat aufgenommen

7. 2020-11-26 #7

   Neue Updates von SUSE aufgenommen

8. 2020-11-25 #6

   Neue Updates von Ubuntu aufgenommen

9. 2020-11-23 #5

   Neue Updates von Debian aufgenommen

10. 2020-11-22 #4

    Neue Updates von SUSE und Debian aufgenommen

11. 2020-11-19 #3

    Neue Updates von Debian, SUSE und Ubuntu aufgenommen

12. 2020-11-18 #2

    Korrektur

13. 2020-11-17 #1

    Initiale Fassung

References

• Mozilla Foundation Security Advisory vom 2020-11-17
  https://www.mozilla.org/en-US/security/advisories/mfsa2020-50/
• Mozilla Foundation Security Advisory vom 2020-11-17
  https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/
• Mozilla Foundation Security Advisory vom 2020-11-17
  https://www.mozilla.org/en-US/security/advisories/mfsa2020-52/
• Arch Linux Security Advisory
  https://security.archlinux.org/ASA-202011-12/generate
• Debian Security Advisory DLA-2457 vom 2020-11-19
  https://lists.debian.org/debian-lts-announce/2020/11/msg00034.html
• SUSE Security Update SUSE-SU-2020:3383-1 vom 2020-11-19
  https://lists.suse.com/pipermail/sle-security-updates/2020-November/007797.html
• Ubuntu Security Notice USN-4637-2 vom 2020-11-19
  https://ubuntu.com/security/notices/USN-4637-2
• Debian Security Advisory DSA-4793 vom 2020-11-19
  https://www.debian.org/security/2020/dsa-4793
• SUSE Security Update SUSE-SU-2020:3458-1 vom 2020-11-20
  https://lists.suse.com/pipermail/sle-security-updates/2020-November/007823.html
• Debian Security Advisory DSA-4796 vom 2020-11-22
  https://www.debian.org/security/2020/dsa-4796
• SUSE Security Update SUSE-SU-2020:14548-1 vom 2020-11-20
  https://lists.suse.com/pipermail/sle-security-updates/2020-November/007825.html
• Debian Security Advisory DLA-2464 vom 2020-11-23
  https://lists.debian.org/debian-lts-announce/2020/11/msg00042.html
• Ubuntu Security Notice USN-4647-1 vom 2020-11-26
  https://ubuntu.com/security/notices/USN-4647-1
• SUSE Security Update SUSE-SU-2020:3528-1 vom 2020-11-26
  https://lists.suse.com/pipermail/sle-security-updates/2020-November/007870.html
• SUSE Security Update SUSE-SU-2020:3548-1 vom 2020-11-27
  https://lists.suse.com/pipermail/sle-security-updates/2020-November/007883.html
• Red Hat Security Advisory RHSA-2020:5240 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5240
• Red Hat Security Advisory RHSA-2020:5231 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5231
• Red Hat Security Advisory RHSA-2020:5233 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5233
• Red Hat Security Advisory RHSA-2020:5236 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5236
• Red Hat Security Advisory RHSA-2020:5232 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5232
• Red Hat Security Advisory RHSA-2020:5234 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5234
• Red Hat Security Advisory RHSA-2020:5238 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5238
• Red Hat Security Advisory RHSA-2020:5237 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5237
• Oracle Linux Security Advisory ELSA-2020-5237 vom 2020-12-01
  https://linux.oracle.com/errata/ELSA-2020-5237.html
• Red Hat Security Advisory RHSA-2020:5235 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5235
• Red Hat Security Advisory RHSA-2020:5239 vom 2020-12-01
  https://access.redhat.com/errata/RHSA-2020:5239
• Red Hat Security Advisory RHSA-2020:5257 vom 2020-11-30
  https://access.redhat.com/errata/RHSA-2020:5257
• Oracle Linux Security Advisory ELSA-2020-5239 vom 2020-12-01
  https://linux.oracle.com/errata/ELSA-2020-5239.html
• Oracle Linux Security Advisory ELSA-2020-5235 vom 2020-11-30
  https://linux.oracle.com/errata/ELSA-2020-5235.html
• Oracle Linux Security Advisory ELSA-2020-5236 vom 2020-12-01
  https://linux.oracle.com/errata/ELSA-2020-5236.html
• Oracle Linux Security Advisory ELSA-2020-5257 vom 2020-12-01
  https://linux.oracle.com/errata/ELSA-2020-5257.html
• Red Hat Security Advisory RHSA-2020:5314 vom 2020-12-01
  https://access.redhat.com/errata/RHSA-2020:5314
• Oracle Linux Security Advisory ELSA-2020-5238 vom 2020-12-01
  https://linux.oracle.com/errata/ELSA-2020-5238.html
• Gentoo Linux Security Advisory GLSA-202012-04 vom 2020-12-07
  https://security.gentoo.org/glsa/202012-04
• Gentoo Linux Security Advisory GLSA-202012-03 vom 2020-12-07
  https://security.gentoo.org/glsa/202012-03
• CentOS Security Advisory CESA-2020:5235 vom 2020-12-09
  http://centos-announce.2309468.n4.nabble.com/CentOS-announce-CESA-2020-5235-Important-CentOS-7-thunderbird-Security-Update-tp4646079.html
• CentOS Security Advisory CESA-2020:5239 vom 2020-12-09
  http://centos-announce.2309468.n4.nabble.com/CentOS-announce-CESA-2020-5239-Important-CentOS-7-firefox-Security-Update-tp4646078.html
• PoC auf GitHub vom 2026-02-08
  https://github.com/leopoldabgn/CVE-2020-16012-PoC