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[RHSA-2021:3755] firefox security update

Severity Important
Affected Packages 4
CVEs 6
Info Packages References Vulnerabilities

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 91.2.0 ESR.

Security Fix(es):

  • Mozilla: Use-after-free in MessageTask (CVE-2021-38496)

  • Mozilla: Memory safety bugs fixed in Firefox 93, Firefox ESR 78.15, and Firefox ESR 91.2 (CVE-2021-38500)

  • Mozilla: Memory safety bugs fixed in Firefox 93 and Firefox ESR 91.2 (CVE-2021-38501)

  • rust-crossbeam-deque: race condition may lead to double free (CVE-2021-32810)

  • Mozilla: Validation message could have been overlaid on another origin (CVE-2021-38497)

  • Mozilla: Use-after-free of nsLanguageAtomService object (CVE-2021-38498)

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.

Package Affected Version
pkg:rpm/redhat/firefox?arch=x86_64&distro=redhat-8.4 < 91.2.0-4.el8_4
pkg:rpm/redhat/firefox?arch=s390x&distro=redhat-8.4 < 91.2.0-4.el8_4
pkg:rpm/redhat/firefox?arch=ppc64le&distro=redhat-8.4 < 91.2.0-4.el8_4
pkg:rpm/redhat/firefox?arch=aarch64&distro=redhat-8.4 < 91.2.0-4.el8_4
ID
RHSA-2021:3755
Severity
important
URL
https://access.redhat.com/errata/RHSA-2021:3755
Published
2021-10-11T00:00:00
(2 years ago)
Modified
2021-10-11T00:00:00
(2 years ago)
Rights
Copyright 2021 Red Hat, Inc.
Other Advisories
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:rpm/redhat/firefox?arch=x86_64&distro=redhat-8.4 redhat firefox < 91.2.0-4.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/firefox?arch=s390x&distro=redhat-8.4 redhat firefox < 91.2.0-4.el8_4 redhat-8.4 s390x
Affected pkg:rpm/redhat/firefox?arch=ppc64le&distro=redhat-8.4 redhat firefox < 91.2.0-4.el8_4 redhat-8.4 ppc64le
Affected pkg:rpm/redhat/firefox?arch=aarch64&distro=redhat-8.4 redhat firefox < 91.2.0-4.el8_4 redhat-8.4 aarch64
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories Exploits PoC Pubblication Date Modification Date
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories PoC Pubblication Date Modification Date