-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2021:5047-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:5047 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 8.2 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, 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 instance methods (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 EUS (v. 8.2): Source: thunderbird-91.4.0-2.el8_2.src.rpm aarch64: thunderbird-91.4.0-2.el8_2.aarch64.rpm thunderbird-debuginfo-91.4.0-2.el8_2.aarch64.rpm thunderbird-debugsource-91.4.0-2.el8_2.aarch64.rpm ppc64le: thunderbird-91.4.0-2.el8_2.ppc64le.rpm thunderbird-debuginfo-91.4.0-2.el8_2.ppc64le.rpm thunderbird-debugsource-91.4.0-2.el8_2.ppc64le.rpm x86_64: thunderbird-91.4.0-2.el8_2.x86_64.rpm thunderbird-debuginfo-91.4.0-2.el8_2.x86_64.rpm thunderbird-debugsource-91.4.0-2.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-2021-43528 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: GnuPG v1 iQIVAwUBYbIWFtzjgjWX9erEAQhbgBAAi/T/Bgv+TnjNnm4ZoMzgyThuuz6uQtFx JBpNL5a8sQzEjBSTS5v9okykA5RLctnGuVJAhWXw0ANqMgZ2pjRuSLjQ4sLexa+s 1JXNaObkAhlAp3hEVCR+bDSIiceqhDth5ilC8PhHR0mS3C/uJNeco6HWaS5b7C2q IY8cPAxD/aVH9fsMHqRDzRgpxsHOPmlZ/UFZn3Zwm5z8Hwz1V+J1MD0wLPtycMKr vVcvdtN+zwtBzisx/zXZPwG3rWonyilJ+vRRRVy6NjoOk0+vrenwYkv1HBjSOdA6 9dNfo+f2I/YU9CITH/DSC4gKveFki+1Cto2/cUjiw7y9yfwc6DvOuKo11A1FPhhB Lr9Dh05zKblAYjFMyangIa5GDnZZqNXVUNNaRkwq22N+sjgVXS8+iWotHDYSfcab WZpH6K6hJ15sqJ2+7HCGlile8vemOLiTUbOrr5wYgPnXreW4huNsDyFKe9e8XKDL WGg1zXPi0C8qfHG6qjm0umF1tUOfBG1kO+qU2/R1cT/VSw2cB/5TGLt8q5TT/WwJ K0/QL9hU/f4hm1rmAJhNIkGJZmF58j17HWZkTlBD3qK9su3SH3mkmcxIiNgPEGEQ CW56x6XrVKaXzZzUafvc15cCdPB0+znff+T6LKp64pWD6EjNo1nDzoBfI3zAtfUC t/5gxejnChc=XyAz -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce