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Red Hat: RHSA-2021-0659-01 Critical: Firefox Memory Safety Threat

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 Critical. A Common Vulnerability Scoring System (CVSS) base score, which. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Critical: firefox security update Advisory ID: RHSA-2021:0659-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0659 Issue date: 2021-02-24 CVE Names: CVE-2021-23968 CVE-2021-23969 CVE-2021-23973 CVE-2021-23978 ==================================================================== 1. Summary: 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 Critical. 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 EUS (v. 8.1) - 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 78.8.0 ESR. Security Fix(es): * Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23968) * Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23969) * Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8 (CVE-2021-23978) * Mozilla: MediaError message property could have leaked information about cross-origin resources (CVE-2021-23973) 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/): 1932109 - CVE-2021-23969 Mozilla: Content Security Policy violation report could have contained the destination of a redirect 1932110 - CVE-2021-23968 Mozilla: Content Security Policy violation report could have contained the destination of a redirect 1932111 - CVE-2021-23973 Mozilla: MediaError message property could have leaked information about cross-origin resources 1932112 - CVE-2021-23978 Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.1): Source: firefox-78.8.0-1.el8_1.src.rpm aarch64: firefox-78.8.0-1.el8_1.aarch64.rpm firefox-debuginfo-78.8.0-1.el8_1.aarch64.rpm firefox-debugsource-78.8.0-1.el8_1.aarch64.rpm ppc64le: firefox-78.8.0-1.el8_1.ppc64le.rpm firefox-debuginfo-78.8.0-1.el8_1.ppc64le.rpm firefox-debugsource-78.8.0-1.el8_1.ppc64le.rpm s390x: firefox-78.8.0-1.el8_1.s390x.rpm firefox-debuginfo-78.8.0-1.el8_1.s390x.rpm firefox-debugsource-78.8.0-1.el8_1.s390x.rpm x86_64: firefox-78.8.0-1.el8_1.x86_64.rpm firefox-debuginfo-78.8.0-1.el8_1.x86_64.rpm firefox-debugsource-78.8.0-1.el8_1.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-2021-23968 https://access.redhat.com/security/cve/CVE-2021-23969 https://access.redhat.com/security/cve/CVE-2021-23973 https://access.redhat.com/security/cve/CVE-2021-23978 https://access.redhat.com/security/updates/classification#critical 8. Contact: The Red Hat security contact is . Morecontact details at https://access.redhat.com/security/team/contact Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYDZyFdzjgjWX9erEAQiQjBAAp13TU6pL+1Ko/ly9wbsul4FvxR/bs2UY FGmTJ6nL03l32PJX0pkDFx7bUHiYwUzbYMLBEvbN2V5yHk5i2Q1qZLfsVqYeLyaZ fqlR++psFJP/sp73WxdDBCyflIE2IqshT7Y7sS9ovHUNZB+9nOphetlcI7Y82DYR BFOI8p1x7Q796p1TqjzIoSLs0XzDSGDTqvtsOXE24vreYT47/7jbVCj9/J+324c8 OyRYVc25DkClngkGglXURSHRhLS1XylVmLIIfk88uQJX/GcMNZlH1oe+7KdguLNn gGiXVmPeexEsrEuulNqc8JbzInH4Pp9yaUuSCL8nEjZukvGaMqQ5ojBShC8IvBHB 4Nzl1p5liE7mNVuhLcODVvJSnUYKD2eCDHra5Uubh1cimKfqemFcTlUub1EEYv29 zV724h7VdT6K8edR3nQoHhb05Mq9d61Io39pzqriDlErXn64L5nEXmDxVjwNw5WG ykUBh5sohtyaKC0f0lPMjnQFJpxKOu+yYizC/LQ1B3vy08JG4MyztCAM94xWd16b eXPodZV2W/guhJUtok/KTSIH2gml3gPhqPsTtYi5P3Grm6w0mLsal7nzpP/6c3aP k76PrOToQgPpLpdmzjK/U2erNPo23mTXmbjbIX/pApz2l09O1u3aXK5u7/97KD3v ty1F4QAWSQY=7hfX -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. https://listman.redhat.com/mailman/listinfo/rhsa-announce . Essential Firefox security patch released for Red Hat Enterprise Linux 8.1 tackling several vulnerabilities affecting users.. Firefox Security Update, Red Hat Critical Advisory, Software Update. . Severity: Critical. LinuxSecurity.com Team

Feb 24, 2021 •Critical Red Hat