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Red Hat 8.2 RHSA-2021:1201 Moderate: 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 Moderate. A Common Vulnerability Scoring System (CVSS) base score, which. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: thunderbird security update Advisory ID: RHSA-2021:1201-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:1201 Issue date: 2021-04-14 CVE Names: CVE-2021-23991 CVE-2021-23992 CVE-2021-23993 ==================================================================== 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 Moderate. 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 78.9.1. Security Fix(es): * Mozilla: An attacker may use Thunderbird's OpenPGP key refresh mechanism to poison an existing key (CVE-2021-23991) * Mozilla: A crafted OpenPGP key with an invalid user ID could be used to confuse the user (CVE-2021-23992) * Mozilla: Inability to send encrypted OpenPGP email after importing a crafted OpenPGP key (CVE-2021-23993) 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 thechanges 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/): 1948393 - CVE-2021-23991 Mozilla: An attacker may use Thunderbird's OpenPGP key refresh mechanism to poison an existing key 1948394 - CVE-2021-23992 Mozilla: A crafted OpenPGP key with an invalid user ID could be used to confuse the user 1948395 - CVE-2021-23993 Mozilla: Inability to send encrypted OpenPGP email after importing a crafted OpenPGP key 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.2): Source: thunderbird-78.9.1-1.el8_2.src.rpm aarch64: thunderbird-78.9.1-1.el8_2.aarch64.rpm thunderbird-debuginfo-78.9.1-1.el8_2.aarch64.rpm thunderbird-debugsource-78.9.1-1.el8_2.aarch64.rpm ppc64le: thunderbird-78.9.1-1.el8_2.ppc64le.rpm thunderbird-debuginfo-78.9.1-1.el8_2.ppc64le.rpm thunderbird-debugsource-78.9.1-1.el8_2.ppc64le.rpm x86_64: thunderbird-78.9.1-1.el8_2.x86_64.rpm thunderbird-debuginfo-78.9.1-1.el8_2.x86_64.rpm thunderbird-debugsource-78.9.1-1.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-2021-23991 https://access.redhat.com/security/cve/CVE-2021-23992 https://access.redhat.com/security/cve/CVE-2021-23993 https://access.redhat.com/security/updates/classification/#moderate 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 iQIVAwUBYHchvtzjgjWX9erEAQioWBAApYJoRX4W1v/xiSPoBq2VLuo13qIjFxxy Eb9MHUTAqOT4REPPCQesCOeSf4MXEtu/G2m0FtyNu8eh3OShxZXF7rH4OJTVfDY1 3iivbzmU5A2I+Z30ImS7Nwg6AYRVk3lUV+uF4et5xae4F3J2houRioSoYPXSzNpJ mLYj9jCGedYiMk5KZEgUSCS2NBWXH5Vay98zUsnF4Yt0Nr2UDzfVzmoGi+RtUj1V 54Fy4LsZfqU7XMCBkCZPIjrAVdPJSAMo3q7EKC8/TGzIGbh5oMQREYoeepcIklES 3+dJzUT0MvRsJ9exNsVDNZ+a5YQdnubr2P+lQoRXOo80BgUPjJ44lFt0h15Y+kaN wDoav90gPyLyU9YG6c39G1OT8PfTiPIjycE1eO0GUqP0PxfQWwtUvJtAL6NPxTQC wtO5Ni4MilhJ4B19UfxrgXf6x44+gdj+yXBNQSQXJxJgB+X8ScAb/CFXxpPHVw8D w/WR9N2r6Y3uFtk9kyfLTEbtA9ufgkXzDvxwbIYnPDGpWK7/KqXa9dKW9oRFqIKc VVuEs8MNuBjdKgjywpAHK8s8qgrzAlFa9SlfC2W/afdJxi43p59tB3rZ1Qo1ZDZl BC0wXs5JJuTSubJuoqwdBhWktP8tZLRbKUigkEG++y7axdY+f+wYXbNkPNxlmWFB 2FHm1T+hlz0=dRF5 -----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 . A Significant security patch for Thunderbird within Red Hat 8.2 EUS tackles important vulnerabilities with essential updates.. Thunderbird Security Update, Red Hat Enterprise Linux, Moderate Advisory, Email Client Security. . Severity: Important. LinuxSecurity.com Team

Apr 14, 2021 •Important Red Hat