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Red Hat 8.2 RHSA-2020:5622-01 Important: Thunderbird Security Issue

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,. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2020:5622-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:5622 Issue date: 2020-12-17 CVE Names: CVE-2020-16042 CVE-2020-26971 CVE-2020-26973 CVE-2020-26974 CVE-2020-26978 CVE-2020-35111 CVE-2020-35113 ==================================================================== 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 78.6.0. Security Fix(es): * chromium-browser: Uninitialized Use in V8 (CVE-2020-16042) * Mozilla: Heap buffer overflow in WebGL (CVE-2020-26971) * Mozilla: CSS Sanitizer performed incorrect sanitization (CVE-2020-26973) * Mozilla: Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free (CVE-2020-26974) * Mozilla: Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6 (CVE-2020-35113) * Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2020-26978) * Mozilla: Theproxy.onRequest API did not catch view-source URLs (CVE-2020-35111) 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/): 1904515 - CVE-2020-16042 chromium-browser: Uninitialized Use in V8 1908022 - CVE-2020-26971 Mozilla: Heap buffer overflow in WebGL 1908023 - CVE-2020-26973 Mozilla: CSS Sanitizer performed incorrect sanitization 1908024 - CVE-2020-26974 Mozilla: Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free 1908025 - CVE-2020-26978 Mozilla: Internal network hosts could have been probed by a malicious webpage 1908027 - CVE-2020-35111 Mozilla: The proxy.onRequest API did not catch view-source URLs 1908029 - CVE-2020-35113 Mozilla: Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.2): Source: thunderbird-78.6.0-1.el8_2.src.rpm aarch64: thunderbird-78.6.0-1.el8_2.aarch64.rpm thunderbird-debuginfo-78.6.0-1.el8_2.aarch64.rpm thunderbird-debugsource-78.6.0-1.el8_2.aarch64.rpm ppc64le: thunderbird-78.6.0-1.el8_2.ppc64le.rpm thunderbird-debuginfo-78.6.0-1.el8_2.ppc64le.rpm thunderbird-debugsource-78.6.0-1.el8_2.ppc64le.rpm x86_64: thunderbird-78.6.0-1.el8_2.x86_64.rpm thunderbird-debuginfo-78.6.0-1.el8_2.x86_64.rpm thunderbird-debugsource-78.6.0-1.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-2020-16042 https://access.redhat.com/security/cve/CVE-2020-26971 https://access.redhat.com/security/cve/CVE-2020-26973 https://access.redhat.com/security/cve/CVE-2020-26974 https://access.redhat.com/security/cve/CVE-2020-26978 https://access.redhat.com/security/cve/CVE-2020-35111 https://access.redhat.com/security/cve/CVE-2020-35113 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 iQIVAwUBX9uFBtzjgjWX9erEAQgzZxAAj0uMaXizjs2/hvN/SNVbuXUPNhkGPXYV 4xjxtzZ+JOM5x8fGX3OtVBX/s/XtN5No+03APa1wKWAxwUEZloT5VzAxqM7agbso XAs7IJQMrH/O4JzpJcre6JewCTGp7rCM6fwq9CjAVUC3zJppaw9H81pk86cnNrr7 0lpzL9IQTYzAD7xNkwlRM6oF0fkAg71NMi4bt4SsSATTMMVWRMAu9JgcP/Rzqgup 1BRQ+GGdMEJGdBP+4ZOgU9Z0kRGhUKTNIwdQcT8h8g7Elu2IiN/9MFZOivmqdKAR DDosaKBa4j6VjfH3ixWcHE2udjBITDjfav+J7bpvs216foLPAFpjE0psWHgPzjA8 Q5INbyPeG94yCRsE+YZ3VFNgxxA7IJRTCkNb542mvojsfSEI/7qf7a2wGuXG25lD udbSbO1m6AGlbH2vCm7s5C1xdzlnneGsCj86fF+zriNsFU6qwcmzcR3/M2DkFUtv hq4OTb7rC2WY0MhSHn5xWWwy9AgCiG1oJOUuTh86eZdW1ZYf+vPcJmPA99c32u/u RhRBwEwXdylx+gGxeF2sSMKSxynHssw40zKbkMzY2tuXlbxiCSV7Di/IcOB0BOCw Bi8UKacrgfxemtVea+/G3r/iBZEK15AU75CbjSH+3qrZYEoPGFLjYp2wSMSkmDn8 mxq/u112GI4=6bnR -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . Crucial announcement for Thunderbird users on Red Hat 8.2 regarding significant security vulnerabilities identified. A system reboot is necessary. Find the complete information.. Thunderbird Security Update, Red Hat Enterprise Linux, Security Impact Important. . Severity: Important. LinuxSecurity.com Team

Dec 17, 2020 •Important Red Hat