CVE-2020-12424
mediumpriority · track · 27OT risk · elevatedEPSS 0.016 · 76 %ileDEEURUUSEPSS · scored 2026-10-27
When constructing a permission prompt for WebRTC, a URI was supplied from the content process. This URI was untrusted, and could have been the URI of an origin that was previously granted permission; bypassing the prompt. This vulnerability affects Firefox < 78.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedfirefox-0:78.2.0-3.el8_0.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v. 8.0)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3555 - Fixedfirefox-0:78.2.0-3.el8_0.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v. 8.0)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3555 - Fixedfirefox-0:78.2.0-3.el8_0.src as a component of Red Hat Enterprise Linux AppStream E4S (v. 8.0)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3555 - Fixedfirefox-0:78.2.0-3.el8_0.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v. 8.0)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3555 - Fixedfirefox-debuginfo-0:78.2.0-3.el8_0.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v. 8.0)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3555 - Fixedfirefox-debuginfo-0:78.2.0-3.el8_0.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v. 8.0)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3555 - Fixedfirefox-debugsource-0:78.2.0-3.el8_0.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v. 8.0)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3555 - Fixedfirefox-debugsource-0:78.2.0-3.el8_0.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v. 8.0)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3555 - Fixedfirefox-0:78.2.0-2.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-0:78.2.0-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-0:78.2.0-2.el8_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-0:78.2.0-2.el8_2.src as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-0:78.2.0-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-debuginfo-0:78.2.0-2.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-debuginfo-0:78.2.0-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-debuginfo-0:78.2.0-2.el8_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-debuginfo-0:78.2.0-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-debugsource-0:78.2.0-2.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-debugsource-0:78.2.0-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-debugsource-0:78.2.0-2.el8_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-debugsource-0:78.2.0-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3557 - Fixedfirefox-0:78.2.0-3.el8_1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-0:78.2.0-3.el8_1.i686 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-0:78.2.0-3.el8_1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-0:78.2.0-3.el8_1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-0:78.2.0-3.el8_1.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-0:78.2.0-3.el8_1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-debuginfo-0:78.2.0-3.el8_1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-debuginfo-0:78.2.0-3.el8_1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-debuginfo-0:78.2.0-3.el8_1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-debuginfo-0:78.2.0-3.el8_1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-debugsource-0:78.2.0-3.el8_1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-debugsource-0:78.2.0-3.el8_1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-debugsource-0:78.2.0-3.el8_1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-debugsource-0:78.2.0-3.el8_1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.1)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:3559 - Fixedfirefox-0:78.3.0-1.el7_9.i686 as a component of Red Hat Enterprise Linux Client Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.i686 as a component of Red Hat Enterprise Linux Workstation Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.src as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.src as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.src as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-0:78.3.0-1.el7_9.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-debuginfo-0:78.3.0-1.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-debuginfo-0:78.3.0-1.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-debuginfo-0:78.3.0-1.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-debuginfo-0:78.3.0-1.el7_9.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-debuginfo-0:78.3.0-1.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080 - Fixedfirefox-debuginfo-0:78.3.0-1.el7_9.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
https://access.redhat.com/errata/RHSA-2020:4080
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (85)
Products and version ranges known to be affected.
advisories (5)
Vendor and ecosystem advisories describing this.
- RHSA-2020:3555Red Hat Security Advisory: firefox security update2020-08-26csaf · redhat_csafUS
An update for firefox is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- RHSA-2020:3557Red Hat Security Advisory: firefox security update2020-08-26csaf · redhat_csafUS
An update for firefox is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- RHSA-2020:3559Red Hat Security Advisory: firefox security update2020-08-26csaf · redhat_csafUS
An update for firefox is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- RHSA-2020:4080Red Hat Security Advisory: firefox security and bug fix update2020-09-30csaf · redhat_csafUS
An update for firefox is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- WID-SEC-W-2023-0457Mozilla Firefox/Thunderbird: Mehrere SchwachstellenDeutsch2020-06-30csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Thunderbird ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (25)
External citations — patches, advisories, analysis.
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlcnnvd
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlcnnvd
- https://bugzilla.mozilla.org/show_bug.cgi?id=1562600cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-12424cnnvd
- https://packetstormsecurity.com/files/158284/Ubuntu-Security-Notice-USN-4408-1.htmlcnnvd
- https://packetstormsecurity.com/files/158571/Gentoo-Linux-Security-Advisory-202007-10.htmlcnnvd
- https://packetstormsecurity.com/files/158970/Red-Hat-Security-Advisory-2020-3559-01.htmlcnnvd
- https://packetstormsecurity.com/files/159402/Red-Hat-Security-Advisory-2020-4080-01.htmlcnnvd
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