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===================================================================== Red Hat Security Advisory
Synopsis: Important: firefox security update Advisory ID: RHSA-2020:3832-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:3832 Issue date: 2020-09-24 CVE Names: CVE-2020-15673 CVE-2020-15676 CVE-2020-15677 CVE-2020-15678 =====================================================================
1. Summary:
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
3. Description:
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 78.3.0 ESR.
Security Fix(es):
* Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3 (CVE-2020-15673)
* Mozilla: XSS when pasting attacker-controlled data into a contenteditable element (CVE-2020-15676)
* Mozilla: Download origin spoofing via redirect (CVE-2020-15677)
* Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario (CVE-2020-15678)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
4. Solution:
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.
5. Bugs fixed (https://bugzilla.redhat.com/):
1881664 - CVE-2020-15677 Mozilla: Download origin spoofing via redirect 1881665 - CVE-2020-15676 Mozilla: XSS when pasting attacker-controlled data into a contenteditable element 1881666 - CVE-2020-15678 Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario 1881667 - CVE-2020-15673 Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
Source: firefox-78.3.0-1.el8_2.src.rpm
aarch64: firefox-78.3.0-1.el8_2.aarch64.rpm firefox-debuginfo-78.3.0-1.el8_2.aarch64.rpm firefox-debugsource-78.3.0-1.el8_2.aarch64.rpm
ppc64le: firefox-78.3.0-1.el8_2.ppc64le.rpm firefox-debuginfo-78.3.0-1.el8_2.ppc64le.rpm firefox-debugsource-78.3.0-1.el8_2.ppc64le.rpm
s390x: firefox-78.3.0-1.el8_2.s390x.rpm firefox-debuginfo-78.3.0-1.el8_2.s390x.rpm firefox-debugsource-78.3.0-1.el8_2.s390x.rpm
x86_64: firefox-78.3.0-1.el8_2.x86_64.rpm firefox-debuginfo-78.3.0-1.el8_2.x86_64.rpm firefox-debugsource-78.3.0-1.el8_2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2020-15673 https://access.redhat.com/security/cve/CVE-2020-15676 https://access.redhat.com/security/cve/CVE-2020-15677 https://access.redhat.com/security/cve/CVE-2020-15678 https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
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