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Red Hat Enterprise Linux 7: RHSA-2021-1350-01 Important Thunderbird Update

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. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2021:1350-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:1350 Issue date: 2021-04-26 CVE Names: CVE-2021-23961 CVE-2021-23994 CVE-2021-23995 CVE-2021-23998 CVE-2021-23999 CVE-2021-24002 CVE-2021-29945 CVE-2021-29946 CVE-2021-29948 ==================================================================== 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 78.10.0. Security Fix(es): * Mozilla: Out of bound write due to lazy initialization (CVE-2021-23994) * Mozilla: Use-after-free in Responsive Design Mode (CVE-2021-23995) * Mozilla: More internal network hosts could have been probed by a malicious webpage (CVE-2021-23961) * Mozilla: Secure Lock icon could have been spoofed (CVE-2021-23998) * Mozilla: Blob URLs may have been grantedadditional privileges (CVE-2021-23999) * Mozilla: Arbitrary FTP command execution on FTP servers using an encoded URL (CVE-2021-24002) * Mozilla: Incorrect size computation in WebAssembly JIT could lead to null-reads (CVE-2021-29945) * Mozilla: Port blocking could be bypassed (CVE-2021-29946) * Mozilla: Race condition when reading from disk while verifying signatures (CVE-2021-29948) 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/): 1951364 - CVE-2021-23994 Mozilla: Out of bound write due to lazy initialization 1951365 - CVE-2021-23995 Mozilla: Use-after-free in Responsive Design Mode 1951366 - CVE-2021-23998 Mozilla: Secure Lock icon could have been spoofed 1951367 - CVE-2021-23961 Mozilla: More internal network hosts could have been probed by a malicious webpage 1951368 - CVE-2021-23999 Mozilla: Blob URLs may have been granted additional privileges 1951369 - CVE-2021-24002 Mozilla: Arbitrary FTP command execution on FTP servers using an encoded URL 1951370 - CVE-2021-29945 Mozilla: Incorrect size computation in WebAssembly JIT could lead to null-reads 1951371 - CVE-2021-29946 Mozilla: Port blocking could be bypassed 1951381 - CVE-2021-29948 Mozilla: Race condition when reading from disk while verifying signatures 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: thunderbird-78.10.0-1.el7_9.src.rpm x86_64: thunderbird-78.10.0-1.el7_9.x86_64.rpm thunderbird-debuginfo-78.10.0-1.el7_9.x86_64.rpm Red Hat Enterprise Linux Server Optional (v.7): Source: thunderbird-78.10.0-1.el7_9.src.rpm ppc64le: thunderbird-78.10.0-1.el7_9.ppc64le.rpm thunderbird-debuginfo-78.10.0-1.el7_9.ppc64le.rpm x86_64: thunderbird-78.10.0-1.el7_9.x86_64.rpm thunderbird-debuginfo-78.10.0-1.el7_9.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: thunderbird-78.10.0-1.el7_9.src.rpm x86_64: thunderbird-78.10.0-1.el7_9.x86_64.rpm thunderbird-debuginfo-78.10.0-1.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-2021-23961 https://access.redhat.com/security/cve/CVE-2021-23994 https://access.redhat.com/security/cve/CVE-2021-23995 https://access.redhat.com/security/cve/CVE-2021-23998 https://access.redhat.com/security/cve/CVE-2021-23999 https://access.redhat.com/security/cve/CVE-2021-24002 https://access.redhat.com/security/cve/CVE-2021-29945 https://access.redhat.com/security/cve/CVE-2021-29946 https://access.redhat.com/security/cve/CVE-2021-29948 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: GnuPGv1 iQIVAwUBYIZa7tzjgjWX9erEAQgxUA/+NkFcwhBSQrMLks80W3dULm3VdsLjR+JT id4qMhlVJ51F2hd+IHv2SAVukOnXyyj2JlYr0pd93fmHABsZWDxrz6CtUnmeQwM8 HyPke7obm4ACct/dGYs60YPGIH+mWuqG2ta4bSTacBQICl8wFp+3Tg3aucI5g6i/ vssCy0lK8sDI1FMbBQ6qF3VM5VIBSodC/pxqIuYMDRVrLw0XNKv2b/6JJrcS/oYH ZRqj3BA3XWoq9Tu5yIiX0mfrMWqOr/dg1RLbGOybyWyBCWhzUQc6/aY1urMzwvUb YqoJlXULCl4L9Mt1lwmLPESxLDAuSE6SGDhvkekCeXk7gMvzAs3iQk9ixT76yn9S UeZIy/K0FoerauQ8oY0tWg3SVzbzA+HUROXZRfCXHitTplH02cFFY9bvcRy2JszD BB5Z7U1DR401C2xkIrhyKpW1P6mq23PQifM3ENNUhp0cKG3WX/7SwOEZ2rxJaUO6 NL4Ah0IsaERi6NzrcIXWo3rgX7UfaVymxaoMCW7UAOPYu0OY7BsTDEetii7cILS2 47uFcx+zRVZ0PeINr0F8e89woqu+t15Cb5NljbZxPZxsLjnJLf8e6KUTPqwqF/ix 6i48nomJx9/52WufIArL570Q+xRCnOo5WXVFxi9Sv74IyWbWghVVtneFXGLb83kv mJG4iS62vm0=ibFx -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. https://listman.redhat.com/mailman/listinfo/rhsa-announce . Crucial security patch released for Thunderbird on Red Hat Enterprise Linux, tackling several critical vulnerabilities.. Thunderbird Security Update, Red Hat Enterprise Linux, Mail Client Update. . Severity: Important. LinuxSecurity.com Team

Apr 26, 2021 •Important Red Hat