-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2020:5238-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:5238 Issue date: 2020-11-30 CVE Names: CVE-2020-16012 CVE-2020-26951 CVE-2020-26953 CVE-2020-26956 CVE-2020-26958 CVE-2020-26959 CVE-2020-26960 CVE-2020-26961 CVE-2020-26965 CVE-2020-26968 ==================================================================== 1. Summary: An update for thunderbird is now available for Red Hat Enterprise Linux 6. 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 Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.5.0. Security Fix(es): * Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code (CVE-2020-26951) * Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5 (CVE-2020-26968) * Mozilla: Variable time processing of cross-origin images during drawImage calls (CVE-2020-16012) * Mozilla: Fullscreen could be enabled without displaying the security UI (CVE-2020-26953) * Mozilla: XSS through paste (manual and clipboard API) (CVE-2020-26956) * Mozilla: Requests intercepted through ServiceWorkers lacked MIME type restrictions (CVE-2020-26958) * Mozilla: Use-after-free in WebRequestService (CVE-2020-26959) * Mozilla: Potential use-after-free in uses of nsTArray (CVE-2020-26960) * Mozilla: DoH did not filter IPv4 mapped IP Addresses (CVE-2020-26961) * Mozilla: Software keyboards may have remembered typed passwords (CVE-2020-26965) 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/): 1898731 - CVE-2020-26951 Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code 1898732 - CVE-2020-16012 Mozilla: Variable time processing of cross-origin images during drawImage calls 1898733 - CVE-2020-26953 Mozilla: Fullscreen could be enabled without displaying the security UI 1898734 - CVE-2020-26956 Mozilla: XSS through paste (manual and clipboard API) 1898735 - CVE-2020-26958 Mozilla: Requests intercepted through ServiceWorkers lacked MIME type restrictions 1898736 - CVE-2020-26959 Mozilla: Use-after-free in WebRequestService 1898737 - CVE-2020-26960 Mozilla: Potential use-after-free in uses of nsTArray 1898738 - CVE-2020-26961 Mozilla: DoH did not filter IPv4 mapped IP Addresses 1898739 - CVE-2020-26965 Mozilla: Software keyboards may have remembered typed passwords 1898741 - CVE-2020-26968 Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: thunderbird-78.5.0-1.el6_10.src.rpm i386: thunderbird-78.5.0-1.el6_10.i686.rpm x86_64: thunderbird-78.5.0-1.el6_10.x86_64.rpm thunderbird-debuginfo-78.5.0-1.el6_10.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: thunderbird-78.5.0-1.el6_10.src.rpm i386: thunderbird-78.5.0-1.el6_10.i686.rpm ppc64: thunderbird-78.5.0-1.el6_10.ppc64.rpm thunderbird-debuginfo-78.5.0-1.el6_10.ppc64.rpm s390x: thunderbird-78.5.0-1.el6_10.s390x.rpm thunderbird-debuginfo-78.5.0-1.el6_10.s390x.rpm x86_64: thunderbird-78.5.0-1.el6_10.x86_64.rpm thunderbird-debuginfo-78.5.0-1.el6_10.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: thunderbird-78.5.0-1.el6_10.src.rpm i386: thunderbird-78.5.0-1.el6_10.i686.rpm x86_64: thunderbird-78.5.0-1.el6_10.x86_64.rpm thunderbird-debuginfo-78.5.0-1.el6_10.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-2020-16012 https://access.redhat.com/security/cve/CVE-2020-26951 https://access.redhat.com/security/cve/CVE-2020-26953 https://access.redhat.com/security/cve/CVE-2020-26956 https://access.redhat.com/security/cve/CVE-2020-26958 https://access.redhat.com/security/cve/CVE-2020-26959 https://access.redhat.com/security/cve/CVE-2020-26960 https://access.redhat.com/security/cve/CVE-2020-26961 https://access.redhat.com/security/cve/CVE-2020-26965 https://access.redhat.com/security/cve/CVE-2020-26968 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 2020 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBX8S0ZtzjgjWX9erEAQgwoQ//Rz9aXbW/0YmsrZTwzXRf+ks1rgsl9kTH HliZvkqEZ5KWoHXPlkbLcS74n2kxp11xiO3+qL4b4rBgzefDzTuklK8FHMD/mrhX RrL6kxuwyUSis0doFChmBNqKBhQgka3J3z9SyZHHeOSeoq/f8BPLqV5xzXEttlN1 4TuTaJIerF/8BwupToDkaL9IXcTW7lr/biSDy4OSoJedsaQYoX6Do46f4bqwdjqU 4fEvbrkhQ35i7js5za8a0c9FXIuvwRCBwxdflQi9v10rpJacJby/RoUprOO+JRKz H76MQi8uIJ3gyrgkf+AlONXGqM6Z2DGkvz7XgjPU2aULdGcSGhvN2a/3IsRiN1MH caBpqnXjpkQ2vcRiTukjxIyFTykEQT/k/5/jv3vDgsY2NTZXJLnnkVxpcVFs+Ktu WnAmy3rFj8r99PV+huHRCaHmjVjvW1LCq7iHRQpnHgmypKAUgy11+H7A6pb1pydb LN/axlHjPSmdkLFVDg1YmgZV1oMZu7qkXJkjvKS7KXsG4nHWdgbN/TJBFOle7MqO mVD8W3CUSLcG55IlJHyizzPFp2pdLjxNR0a9eezLAzkHCZC0onQ+mu1Abglq/ecT nQhQzZ43gxKdbvuQYK83LKLLn6Fe53k1r6uHdC6scWfcZUTrkqj4Wo9g6GEjeyU0 8frU6qoiJ0A=dN6G -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce