-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: firefox security update Advisory ID: RHSA-2021:3756-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:3756 Issue date: 2021-10-11 CVE Names: CVE-2021-32810 CVE-2021-38496 CVE-2021-38497 CVE-2021-38498 CVE-2021-38500 CVE-2021-38501 ===================================================================== 1. Summary: An update for firefox is now available for Red Hat Enterprise Linux 8.2 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream EUS (v. 8.2) - 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 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. 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/): 1990342 - CVE-2021-32810 rust-crossbeam-deque: race condition may lead to double free 2011097 - CVE-2021-38496 Mozilla: Use-after-free in MessageTask 2011098 - CVE-2021-38497 Mozilla: Validation message could have been overlaid on another origin 2011099 - CVE-2021-38498 Mozilla: Use-after-free of nsLanguageAtomService object 2011100 - CVE-2021-38500 Mozilla: Memory safety bugs fixed in Firefox 93, Firefox ESR 78.15, and Firefox ESR 91.2 2011101 - CVE-2021-38501 Mozilla: Memory safety bugs fixed in Firefox 93 and Firefox ESR 91.2 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.2): Source: firefox-91.2.0-4.el8_2.src.rpm aarch64: firefox-91.2.0-4.el8_2.aarch64.rpm firefox-debuginfo-91.2.0-4.el8_2.aarch64.rpm firefox-debugsource-91.2.0-4.el8_2.aarch64.rpm ppc64le: firefox-91.2.0-4.el8_2.ppc64le.rpm firefox-debuginfo-91.2.0-4.el8_2.ppc64le.rpm firefox-debugsource-91.2.0-4.el8_2.ppc64le.rpm s390x: firefox-91.2.0-4.el8_2.s390x.rpm firefox-debuginfo-91.2.0-4.el8_2.s390x.rpm firefox-debugsource-91.2.0-4.el8_2.s390x.rpm x86_64: firefox-91.2.0-4.el8_2.x86_64.rpm firefox-debuginfo-91.2.0-4.el8_2.x86_64.rpm firefox-debugsource-91.2.0-4.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-2021-32810 https://access.redhat.com/security/cve/CVE-2021-38496 https://access.redhat.com/security/cve/CVE-2021-38497 https://access.redhat.com/security/cve/CVE-2021-38498 https://access.redhat.com/security/cve/CVE-2021-38500 https://access.redhat.com/security/cve/CVE-2021-38501 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYWPxmNzjgjWX9erEAQgrPQ/9Gd5RPXbE28nA2RyON55s4Gieonzt3hMc Mt5HAnCm9tAjescwdROLlSKllbJ9TneLXWsCQkwg+uTvquTfsY8jCQepUaVLSuE3 FjAuWECXh1emSYqo0sfK3GfXrRUzSkkCW0XM2+FsfV17pZGGWBhJdqCangscBkeQ FhOnH3ALmDSx9acpzjJ7FGZw0uywuxVbMHXHjntKfrM5cloYJtND9yhVGIAUK2FZ TziAuU0zGKspn35buEdUsahEcZetFVIxMHDfrNB2IQ+Fvu8nBZWoi8sa1D2C+o2F H/d1+Qt65uRWHyHHW8l6CHO04+O2lVE23dl7MZ2/l0E0gd+acChtGIMAMCv9/7/7 6wOz1K62hvk0LCny1iJfZiCfG2V0C9SuD0gYz1XPHFSObhLk2Rr5Q/Wn9pyFMIfY vRLBWL+MAzK5kA8iy8tBUI3doTSl8rYo46GOq9ZrYTw4tZzGxqr5PcahsxbCV63o nYA9tyuTH6kOnCVN9oP3NwlquJv2TUbLUQuiqRkoiqrKGSzbQEhWXIgpZNkFFoM7 8TF0A0kHY0EB6CWMhPOYN8Bt/L8eF9Ccm1RVy583JsF5HmhqytdcRHW+UW1wN5Gb o8P7naAz8ItEbAte7mG+GOvTIt+2Fg0wYGgtpfFY0w5h0vg5KpSY/7rN4I2Ez3xR vGeuMJq+NLE= =Dapq -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce