-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2021:2883-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2883 Issue date: 2021-07-26 CVE Names: CVE-2021-29969 CVE-2021-29970 CVE-2021-29976 CVE-2021-30547 ===================================================================== 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 78.12.0. Security Fix(es): * Mozilla: IMAP server responses sent by a MITM prior to STARTTLS could be processed (CVE-2021-29969) * Mozilla: Use-after-free in accessibility features of a document (CVE-2021-29970) * Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12 (CVE-2021-29976) * chromium-browser: Out of bounds write in ANGLE (CVE-2021-30547) 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/): 1970109 - CVE-2021-30547 chromium-browser: Out of bounds write in ANGLE 1982013 - CVE-2021-29970 Mozilla: Use-after-free in accessibility features of a document 1982014 - CVE-2021-29976 Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12 1982015 - CVE-2021-29969 Mozilla: IMAP server responses sent by a MITM prior to STARTTLS could be processed 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: thunderbird-78.12.0-3.el8_4.src.rpm aarch64: thunderbird-78.12.0-3.el8_4.aarch64.rpm thunderbird-debuginfo-78.12.0-3.el8_4.aarch64.rpm thunderbird-debugsource-78.12.0-3.el8_4.aarch64.rpm ppc64le: thunderbird-78.12.0-3.el8_4.ppc64le.rpm thunderbird-debuginfo-78.12.0-3.el8_4.ppc64le.rpm thunderbird-debugsource-78.12.0-3.el8_4.ppc64le.rpm s390x: thunderbird-78.12.0-3.el8_4.s390x.rpm thunderbird-debuginfo-78.12.0-3.el8_4.s390x.rpm thunderbird-debugsource-78.12.0-3.el8_4.s390x.rpm x86_64: thunderbird-78.12.0-3.el8_4.x86_64.rpm thunderbird-debuginfo-78.12.0-3.el8_4.x86_64.rpm thunderbird-debugsource-78.12.0-3.el8_4.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-2021-29969 https://access.redhat.com/security/cve/CVE-2021-29970 https://access.redhat.com/security/cve/CVE-2021-29976 https://access.redhat.com/security/cve/CVE-2021-30547 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 iQIVAwUBYP6lZtzjgjWX9erEAQioiQ//esCOgCxe3KN9r1O8Ora78r4iJryDtYgZ 8u4pztT3u//ut7Q9lUDoNRe5mMkDgVdG8svGUO9Eh/uGS/OniBrlWzYjMZG526+2 64Nsgc2Cizomn1DfwosH98P5PA2wHcsOw4Oz2K2f4j4Nrb+iXgfdyAH1DjC/HU7j Qjm3WEiZBKJwUm3pgCedRNy2p6k3+83aLtf64RvifMwmFceRaHvL1BK+WctT3hpM A23JlRv2AGM4RIFds4bMO+FDcQ3pmUfGN0VfMw+vlahAR6SFau5IhA2wvKohS30V 6duHaiN/gAh7i2Ja4OVOaPMSBrRgfpKgBmJqnDwUS1ORx6SpsJ/aP2w7ySOoKOcJ dJQ0hnf58E2RawiegyKFt13B+xKGPHHGg7jy1YtRax3qvcInA8pYVUGa4idNpziS 2f224Kz0aU6eJJF2OxDlG2e/+azkrLX6R5cGKtsOsQDhd5h4vE1lfeemR0t3SJtv lhJQrdamauG9zzbuKYJfEbqQgeegZgzy3O6tNCecMJqE1Ek7kAN4uDrI2fYU3UbT caiyO4fH2Tga2X5Mmz7M2Si/4kgYn7k++1ji+JrDm9LIYqccctdMKeEmQOiUbt4q HXSfuUriOpbUSmRWkgLf4NhYPClJAT7S0HLuAgwnqQXyT88gEqer+o42U9vDXsNP Z27j+IQccD4= =McE0 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce