Stay Secure with the Latest Linux Advisories

security fixred hat enterpriseimportant advisory

Red Hat Enterprise 8 RHSA-2021-5045 Important Thunderbird Security Update

An update for thunderbird 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. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2021:5045-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:5045 Issue date: 2021-12-09 CVE Names: CVE-2021-43528 CVE-2021-43536 CVE-2021-43537 CVE-2021-43538 CVE-2021-43539 CVE-2021-43541 CVE-2021-43542 CVE-2021-43543 CVE-2021-43545 CVE-2021-43546 ==================================================================== 1. Summary: An update for thunderbird 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 Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.4.0. Security Fix(es): * Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4 (BZ#2030116) * Mozilla: URL leakage when navigating while executing asynchronous function (CVE-2021-43536) * Mozilla: Heap buffer overflow when using structured clone (CVE-2021-43537) * Mozilla: Missing fullscreen and pointer lock notification when requesting both (CVE-2021-43538) * Mozilla: GC rooting failure when calling wasm instancemethods (CVE-2021-43539) * Mozilla: External protocol handler parameters were unescaped (CVE-2021-43541) * Mozilla: XMLHttpRequest error codes could have leaked the existence of an external protocol handler (CVE-2021-43542) * Mozilla: Bypass of CSP sandbox directive when embedding (CVE-2021-43543) * Mozilla: JavaScript unexpectedly enabled for the composition area (CVE-2021-43528) * Mozilla: Denial of Service when using the Location API in a loop (CVE-2021-43545) * Mozilla: Cursor spoofing could overlay user interface when native cursor is zoomed (CVE-2021-43546) 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 All running instances of Thunderbird must be restarted for the update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 2030105 - CVE-2021-43536 Mozilla: URL leakage when navigating while executing asynchronous function 2030106 - CVE-2021-43537 Mozilla: Heap buffer overflow when using structured clone 2030109 - CVE-2021-43538 Mozilla: Missing fullscreen and pointer lock notification when requesting both 2030110 - CVE-2021-43539 Mozilla: GC rooting failure when calling wasm instance methods 2030111 - CVE-2021-43541 Mozilla: External protocol handler parameters were unescaped 2030112 - CVE-2021-43542 Mozilla: XMLHttpRequest error codes could have leaked the existence of an external protocol handler 2030113 - CVE-2021-43543 Mozilla: Bypass of CSP sandbox directive when embedding 2030114 - CVE-2021-43545 Mozilla: Denial of Service when using the Location API in a loop 2030115 - CVE-2021-43546 Mozilla: Cursor spoofing could overlay user interface when native cursor is zoomed 2030116 - Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4 2030137 - CVE-2021-43528 Mozilla:JavaScript unexpectedly enabled for the composition area 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: thunderbird-91.4.0-2.el8_5.src.rpm aarch64: thunderbird-91.4.0-2.el8_5.aarch64.rpm thunderbird-debuginfo-91.4.0-2.el8_5.aarch64.rpm thunderbird-debugsource-91.4.0-2.el8_5.aarch64.rpm ppc64le: thunderbird-91.4.0-2.el8_5.ppc64le.rpm thunderbird-debuginfo-91.4.0-2.el8_5.ppc64le.rpm thunderbird-debugsource-91.4.0-2.el8_5.ppc64le.rpm s390x: thunderbird-91.4.0-2.el8_5.s390x.rpm thunderbird-debuginfo-91.4.0-2.el8_5.s390x.rpm thunderbird-debugsource-91.4.0-2.el8_5.s390x.rpm x86_64: thunderbird-91.4.0-2.el8_5.x86_64.rpm thunderbird-debuginfo-91.4.0-2.el8_5.x86_64.rpm thunderbird-debugsource-91.4.0-2.el8_5.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-2021-43528 https://access.redhat.com/security/cve/CVE-2021-43536 https://access.redhat.com/security/cve/CVE-2021-43537 https://access.redhat.com/security/cve/CVE-2021-43538 https://access.redhat.com/security/cve/CVE-2021-43539 https://access.redhat.com/security/cve/CVE-2021-43541 https://access.redhat.com/security/cve/CVE-2021-43542 https://access.redhat.com/security/cve/CVE-2021-43543 https://access.redhat.com/security/cve/CVE-2021-43545 https://access.redhat.com/security/cve/CVE-2021-43546 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: GnuPGv1 iQIVAwUBYbIV6tzjgjWX9erEAQiszQ/+N+37uAm1bs7ujjw3bHXiMQ8LU8SEy2iN eyKfGJkkWt0iytyLDWNlx1/4tebnlt2QARqUyYVMsPNc6hXtbAYTKyMU9QSLD7T3 ZptF+9N6TVUf0G23hiGxUgA7SlMqM6Q+UdlL/mqPFRJU4sccpEXe120ENVM2qBI2 vBsxoGf8nSUdCu44PvG67RvW+OiPwanpJ9m8ZO27OuKwnSouKpo7uSYqdYTvybUD 9EnIAGrykD3JpeIKJFPGfBdjcXs8kM8KJM8BrUueWFtJJyoMgMgI98lTjbEZMX/X vlnS673LY4mAl4w3SxkFoWzQJDqbkX41oLwTDYY3xuhy3zR+sCJAi7JnEwtFwkOW 0hGH42hv0v86f3UuBi6BvGUdf5nbfDKjSoBhKq//i7ysSmuxSIgrRckAUCUlxtiD BPUD++kwTkZMQVHDFPv7bqLKW6fLs66KEge4aFlD5ZDASaIkesU2khBycn0qd2gj MbUBBUECF4DwoGD9IjKKHwhkOOHENX8Z2aIeyayq0ZK23W/tjsk2onRIQudlHIdQ rdts+wQUO12rjBQQiAKb4Y8ENgMq54ILVYxvs/AF2L2KgLxGWFCYbNjLuiHaE02B zdohrZluj7e6ziW4M6vElUC92kS4esUtD0ksHJlv0XoqaDLGuF7U+kpjqYGDK9xx W+Nba0BiGDQ=dZDo -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . Crucial patch released for Thunderbird on CentOS 8 to resolve significant vulnerabilities.. Thunderbird Security Update, Red Hat Enterprise Linux, Critical Software Advisory. . Severity: Important. LinuxSecurity.com Team

Dec 09, 2021 •Important Red Hat