Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.4458 thunderbird security update 18 December 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: thunderbird Publisher: Red Hat Operating System: Red Hat Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Access Confidential Data -- Remote with User Interaction Reduced Security -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2020-35113 CVE-2020-35111 CVE-2020-26978 CVE-2020-26974 CVE-2020-26973 CVE-2020-26971 CVE-2020-16042 Reference: ESB-2020.4447 ESB-2020.4419 Original Bulletin: https://access.redhat.com/errata/RHSA-2020:5624 https://access.redhat.com/errata/RHSA-2020:5622 https://access.redhat.com/errata/RHSA-2020:5618 Comment: This bulletin contains three (3) Red Hat security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2020:5624-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:5624 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. 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, 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: The proxy.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 (v. 8): Source: thunderbird-78.6.0-1.el8_3.src.rpm aarch64: thunderbird-78.6.0-1.el8_3.aarch64.rpm thunderbird-debuginfo-78.6.0-1.el8_3.aarch64.rpm thunderbird-debugsource-78.6.0-1.el8_3.aarch64.rpm ppc64le: thunderbird-78.6.0-1.el8_3.ppc64le.rpm thunderbird-debuginfo-78.6.0-1.el8_3.ppc64le.rpm thunderbird-debugsource-78.6.0-1.el8_3.ppc64le.rpm x86_64: thunderbird-78.6.0-1.el8_3.x86_64.rpm thunderbird-debuginfo-78.6.0-1.el8_3.x86_64.rpm thunderbird-debugsource-78.6.0-1.el8_3.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 <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBX9uGMdzjgjWX9erEAQj6MA//bY/3ndKRUb3DtKb1Ht860cMSG2TCZB63 FwKuRd0NPIMr+MwrOM1Bz38sRDn+Y5Y0GWotJ6C2A7zahSK1g72VbWy9VfLubqW6 NNM3xQ73ef9qejG/T/NSonU4PDojMikUbfH2d4vZJFISDwOuiGrmtq/kBw6RwfQp JQ9LmuEcj9LxMDB6wlKcH/drBWmLOfpbMVDzQv9+f4B7TW3a2zhkzO7+PWxkD8xD mHrR2SaWtFGzJMuB0a5Y6jZTEynJ1SyILDS1ptVE0NIrHMbUu4BOLfeHdg1UqNLP PRPUATlrWc6NeW06vJHTPWb99zsnmTv6XrhSUs+SVX1kUX4i7gAGJxxO+maeKg+A RZySwOX0TIBC5CeQyIRNkzG+g+wdopgVfIhkZGF06I/HZpa2pcsiCAVqXeK/gf15 8MxFcKkb1gML70wo0n5VkAkR3oFjf+7Hi+1H9btvApYVKl73J4n+ZUlcCULT+kCB VqFG6Dr782QZz4iAWYbMI/sJqylqobgRCG0aVRrysNQ5IYzPGi03yG5jHdsf/Rp6 l7F01kRJBoFGe/FdYvWLJTmo5EwEjUpFNwYviIgZJwz2p14kZl7Lnt+qjk8h7X7I 7qS1D7URWonMefrbSo2vkAy1iqta7BfZVzpv8CBYpScAtPdhQ1JyRfJBYaypiTD1 VavDsCfRqsI= =ShIU - -----END PGP SIGNATURE----- - ------------------------------------------------------------------------------ - -----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: The proxy.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 <secalert@redhat.com>. 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----- - ------------------------------------------------------------------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2020:5618-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:5618 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 7. 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 Client (v. 7) - x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - 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: The proxy.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 Client (v. 7): Source: thunderbird-78.6.0-1.el7_9.src.rpm x86_64: thunderbird-78.6.0-1.el7_9.x86_64.rpm thunderbird-debuginfo-78.6.0-1.el7_9.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): Source: thunderbird-78.6.0-1.el7_9.src.rpm ppc64le: thunderbird-78.6.0-1.el7_9.ppc64le.rpm thunderbird-debuginfo-78.6.0-1.el7_9.ppc64le.rpm x86_64: thunderbird-78.6.0-1.el7_9.x86_64.rpm thunderbird-debuginfo-78.6.0-1.el7_9.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: thunderbird-78.6.0-1.el7_9.src.rpm x86_64: thunderbird-78.6.0-1.el7_9.x86_64.rpm thunderbird-debuginfo-78.6.0-1.el7_9.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 <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBX9t0ntzjgjWX9erEAQiYAQ/9FKxRiFY2g1H+SN0R+RmOTiQw/qPgp8+k 2lkd69/w9q1hFCYFybDgK4IoOAPJeHuL3E77x/lHAysTT1kgSIpZy8+AMnGXhpJ+ om1UG3uwY4dTzW01Jwce+EC15hxFAa1aBdrlSsD5lJlTw6xAsELKSU0aLlM478Qk JGY9EPlrm5QDIg6A1z0bbVOFzO50XSXE7hNMpn7cXT0kSkhiDtsNldNP8R6f+VM4 Tt8wPKzhzYZD2qbdQe/kxZF8IhCPz27t+h+quKQps92hK1JAuzjDZSZEUsOVx+l7 uODrxW8YKeFnSc3c9leKLR0kUwwCkzh2wrcA6Ka7NlSoXEEstU2/H+l3r7FUErBS dPzyaCaqLf8fKdKgko5DnP+fM0njz0uMPBsAPSFW3eCJ8GX2bvhLcilDJyAQdJrM xLzrd8lPTLL1iNBZhS1iLuo5YO2tEATzsa4JZ26DUayrQ6fgCjecfyIQHUbSRdl9 55ImxOLDGOuZI0Z+JcqV/QFapB0eQzA8Nw15zHYaGbEjYQxX2y2tCattHCwB4JlU 6/mMKAceaspzXuBadkQIJH1diN0ZeV5Iw5egUrMiSmWaffqHYzx+GVybB7lX2nWE 0eph6/GOe3u+BRGqQv4pxE8eVBU+PgYrt1CiCY4j5aowte/zcz8arRwt0wUdZ1Hl GCnx5Y/dhC4= =Ayzx - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBX9vuSuNLKJtyKPYoAQgAyw//TxmKcNh9DLBg/S9s7a7eeKC0vPE5M66H CRSddsSGXuzY7BmOxWGAUETi+OOEsrrKe/qKBizMMQIR0f3HUVWXPdKrtP7g5lnq fn9Re8dX/BQ4Fe2wjYT0vAuGbSvnPmzIAnPBV2XKfl9BA6C7LTOHxdgCupt4GQdx //3fOw8F/2YpBSe94uZdJRXpJAuTMXHregk9YPt9u44Jn/WizIKQOpc7vyBa+X4u oOJb0yUJcc7CvS6snZaFaqXKniYul5cHfqvQHsiVosQCmKu5bVY/OP966a+MWIF1 OV5dyDiaYPjLhNcGtoSSlANmynsmRIUYSNDqThzHlszF6WekbqmhIWPJ6AQe52qD OYtvfkLIBRdv7i/y7GwjXjqKJGcovMWvIViEoIvHo56LZee8LiNfWnEhXvVrAIO/ aNfPTwNhg1qy1AuBYLgslDFe/oT+4fkm7pE7qYfmmjWmxrYzX7v9W4Mm3yuXHoPK BRGhVc1YDUW5AGzeQ6J9/olVpza0mpfapzLd1v6nwjIarQ/b6vkKQY15Mtc28TG4 2w16jSCaRM42PLPOY8DI0JAyMnVF1EhCc3VYbgrvzXYuybu9ZS0FCBHlG9hRvupc t9KAsOq3XhSjW8XQgDR1XebIxye1gMBdaIjqttYKur1vnYvzkdVL7TL4y4CqKgql 92uGVwmpsOA= =JfJ4 -----END PGP SIGNATURE-----