-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: thunderbird security update Advisory ID: RHSA-2021:1190-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:1190 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 8.1 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. 8.1) - 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 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/): 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. 8.1): Source: thunderbird-78.9.1-1.el8_1.src.rpm ppc64le: thunderbird-78.9.1-1.el8_1.ppc64le.rpm thunderbird-debuginfo-78.9.1-1.el8_1.ppc64le.rpm thunderbird-debugsource-78.9.1-1.el8_1.ppc64le.rpm x86_64: thunderbird-78.9.1-1.el8_1.x86_64.rpm thunderbird-debuginfo-78.9.1-1.el8_1.x86_64.rpm thunderbird-debugsource-78.9.1-1.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-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: GnuPG v1 iQIVAwUBYHbOEtzjgjWX9erEAQgUHg/9FNFJ7/G0L4rIipSe08Mk8fZv6S2y2qi0 xKdm17CrrEHD7hDqvhOACV/KpC5EmpyTbKVMfFnqY/Ag4bjNPzfBdz9yDTo2aKVB ligzc9gdtqk4h6JRnlJxseNrpPMqsUnzaVnV51MrphJPpz6e612cC9GIa13Iui2w lSxuYpl4VGS4ZIXGz0XF2CUlZJ7nMhQ8ZkmnzVDHPnmp3ZzrVhh4w24jsVlVIq26 MDjQdr6gahj2lwzhb7X/jzLCXAmBikECZGWrJ5f0av3TulTbM8lwG5/F3DsJ9fts NK6otOzEGpuKNkHJS4TrXbLfhX542JsW+9R6eZ3pqfyW7s55VFgN2/KyaBTgOSPY ClC+fxhbROfkrHvVhKPEMx5lGV+7TyA7WAHwCGH0S3LloaJHp2PufUkTEHGrlDRn qWR4jbY8Tok8U6PD5jlOuaLvLzVg0GvYC1tWO+h9qoQJJ9B+pflF4cBideyOoSeY 4J7lZdEvgx2jIGJScfxlfpYrJaByRo7B+j9Zug3whBTsBC+Am6Y9sliev0UCsWoY qF6Z0SgFeRT5BdmR3dECF/y/dEwzCCUpQvhlIQO8ouCqRkBoOwfYy09xraXyEXHG CHBB9WYWqh0EJkBh+FmnOmVZT0u6zyqyi1nSK52uGaEnRSJu/CKSYIgIVCB+hZpq NaPi7OuXWKg= =QeMo -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce