-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2020:4157-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:4157 Issue date: 2020-10-01 CVE Names: CVE-2020-15673 CVE-2020-15676 CVE-2020-15677 CVE-2020-15678 ===================================================================== 1. Summary: An update for thunderbird is now available for Red Hat Enterprise Linux 8.1 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. 8.1) - ppc64le, x86_64 3. Description: Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.3.1. Security Fix(es): * Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3 (CVE-2020-15673) * Mozilla: XSS when pasting attacker-controlled data into a contenteditable element (CVE-2020-15676) * Mozilla: Download origin spoofing via redirect (CVE-2020-15677) * Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario (CVE-2020-15678) 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/): 1881664 - CVE-2020-15677 Mozilla: Download origin spoofing via redirect 1881665 - CVE-2020-15676 Mozilla: XSS when pasting attacker-controlled data into a contenteditable element 1881666 - CVE-2020-15678 Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario 1881667 - CVE-2020-15673 Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.1): Source: thunderbird-78.3.1-1.el8_1.src.rpm ppc64le: thunderbird-78.3.1-1.el8_1.ppc64le.rpm thunderbird-debuginfo-78.3.1-1.el8_1.ppc64le.rpm thunderbird-debugsource-78.3.1-1.el8_1.ppc64le.rpm x86_64: thunderbird-78.3.1-1.el8_1.x86_64.rpm thunderbird-debuginfo-78.3.1-1.el8_1.x86_64.rpm thunderbird-debugsource-78.3.1-1.el8_1.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-2020-15673 https://access.redhat.com/security/cve/CVE-2020-15676 https://access.redhat.com/security/cve/CVE-2020-15677 https://access.redhat.com/security/cve/CVE-2020-15678 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 iQIVAwUBX3XWKtzjgjWX9erEAQiF4Q/7B5ybS4QS09SCI5nHvB1AWLT4ELJt4Jdk agUyz5Jg4ateAlIR8/CekZKP7JD4ldPpdo2TUGQ4zWfaLiDl6K7wcLGpcd9A5BQ3 6u35fpWf3kQZERpEpYYVAgK/qtoNT1BgfRzBP9DtHLGVazUoO/fKrth1H092EPUF LHWDrql8tLerPgTMkRhRG6VLcTYwSHfjUmCIiZ8hVylDHzKjVkC/9M/Dbb91VO0D LF9Rv/QsfvKwm1xJVZGkBaGy4qEDY/PApe1ZCSYbpc2mImfkWNy/B5S0vlnnkkCV 5rr/E4TIklfZwvZUU5GugY+h+9a005IeqqdyQrpIMGL1c8PdyrhXz7Rgvjk8LCPT fmbQPbHaTcrQWcC5XCZIesK6YuMuWsDs8oFwQqKtdfxOqMcuRWpZ9NN0PMLcWl2A kwD7pNU8miVfotQ2t1OoDyGit63IOYpCiVX3CZ5Kt/O9Cj5N1p0HrtZzrEzAdgw/ VWRwTYfKmm0O8xoDNB7MwKvhXBwapzpuAv1T81th7JB6NYkwCthxXG2lIN8rOl7v GZhAYYGpEhB+SDee/0lyPRnOmfAu7hrq09qRxs65br1WLosmyDF05Hl9X+WQC47f F/qe6AnSxDEqK/tv2poWe+RY++JkStln3gHaOoSlFZEqBJBrqyiAJgfO78JcowoM O80jvF3oHuk= =HVCG -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce