-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: firefox security update Advisory ID: RHSA-2021:3154-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:3154 Issue date: 2021-08-16 CVE Names: CVE-2021-29980 CVE-2021-29984 CVE-2021-29985 CVE-2021-29986 CVE-2021-29988 CVE-2021-29989 ===================================================================== 1. Summary: 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - 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 78.13.0 ESR. Security Fix(es): * Mozilla: Uninitialized memory in a canvas object could have led to memory corruption (CVE-2021-29980) * Mozilla: Incorrect instruction reordering during JIT optimization (CVE-2021-29984) * Mozilla: Race condition when resolving DNS names could have led to memory corruption (CVE-2021-29986) * Mozilla: Memory corruption as a result of incorrect style treatment (CVE-2021-29988) * Mozilla: Memory safety bugs fixed in Thunderbird 78.13 (CVE-2021-29989) * Mozilla: Use-after-free media channels (CVE-2021-29985) 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/): 1992417 - CVE-2021-29986 Mozilla: Race condition when resolving DNS names could have led to memory corruption 1992419 - CVE-2021-29988 Mozilla: Memory corruption as a result of incorrect style treatment 1992420 - CVE-2021-29984 Mozilla: Incorrect instruction reordering during JIT optimization 1992421 - CVE-2021-29980 Mozilla: Uninitialized memory in a canvas object could have led to memory corruption 1992422 - CVE-2021-29985 Mozilla: Use-after-free media channels 1992423 - CVE-2021-29989 Mozilla: Memory safety bugs fixed in Thunderbird 78.13 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: firefox-78.13.0-2.el7_9.src.rpm x86_64: firefox-78.13.0-2.el7_9.x86_64.rpm firefox-debuginfo-78.13.0-2.el7_9.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: firefox-78.13.0-2.el7_9.i686.rpm Red Hat Enterprise Linux Server (v. 7): Source: firefox-78.13.0-2.el7_9.src.rpm ppc64: firefox-78.13.0-2.el7_9.ppc64.rpm firefox-debuginfo-78.13.0-2.el7_9.ppc64.rpm ppc64le: firefox-78.13.0-2.el7_9.ppc64le.rpm firefox-debuginfo-78.13.0-2.el7_9.ppc64le.rpm s390x: firefox-78.13.0-2.el7_9.s390x.rpm firefox-debuginfo-78.13.0-2.el7_9.s390x.rpm x86_64: firefox-78.13.0-2.el7_9.x86_64.rpm firefox-debuginfo-78.13.0-2.el7_9.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): x86_64: firefox-78.13.0-2.el7_9.i686.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: firefox-78.13.0-2.el7_9.src.rpm x86_64: firefox-78.13.0-2.el7_9.x86_64.rpm firefox-debuginfo-78.13.0-2.el7_9.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: firefox-78.13.0-2.el7_9.i686.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-2021-29980 https://access.redhat.com/security/cve/CVE-2021-29984 https://access.redhat.com/security/cve/CVE-2021-29985 https://access.redhat.com/security/cve/CVE-2021-29986 https://access.redhat.com/security/cve/CVE-2021-29988 https://access.redhat.com/security/cve/CVE-2021-29989 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 iQIVAwUBYRo4xtzjgjWX9erEAQgkQg/9EFn2+eo4ZZ/bEjgbVRxY59tI09mlck2p UqoIOVz3Wqz9K7TB/YPyleOfbZR+n1mJL466nFigZeMTGl6PbJYbr+agtVW2UBgN 33s5a5rp9LtGiUQHPXkXRh7MWnD1US2VvDsEbfUkzSAZmAql2Ji7cgLwlyHIcrYe OzynyuAR0ynhrbcaNDVQVXHcoAcI75MBXj0kXkoEj4Jh9ZN+wFrI1yk1J2NEU6TD 9IVwKdF1OTfzppoSSCUKWoNtPIceDADV5pd6JuMzhC/bz+aEU6Xb7J04dfOjVAcu MrIHeTGZL0QFXR0JqNL0v8XST/EaTKAxG5zPSUVrZ/WUa0reRCMTDHGlo31gXt3k w6Wr8gLgNbbk8Kx9GRtEO7mDW5DiF+dYWH5lG6a00v2XTDdjqIQFFdls1CGlD8VA rhns9zzXits5n4rfybrDQZEzNZ/4AALJVG46qW1UXhcouC7Cp7CTDr6gGIUrRK5U v9yRoRnCva1TpjQejg+ISJlH1VnTo6/hxOpfbcmONuhEyXNSJq27vZli+q7RPtAx yYXQ8RhmNTjBM1DbRwcMZLHqv9+IzU4a/1+NuhI9W+d46vsdPut02wZFfA75jAKq K2Am2bLVF/bsrxg8QvYRcXIs81uKLRL4cSFaQIecmWZYK9/6YLnr5A3xSIddEdvk o98S/iV+uWM= =0Ovz -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce