-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2020:5146-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:5146 Issue date: 2020-11-18 CVE Names: CVE-2020-26950 ==================================================================== 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 78.4.3. Security Fix(es): * Mozilla: Write side effects in MCallGetProperty opcode not accounted for (CVE-2020-26950) 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/): 1896306 - CVE-2020-26950 Mozilla: Write side effects in MCallGetProperty opcode not accounted for 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: thunderbird-78.4.3-1.el8_3.src.rpm aarch64: thunderbird-78.4.3-1.el8_3.aarch64.rpm thunderbird-debuginfo-78.4.3-1.el8_3.aarch64.rpm thunderbird-debugsource-78.4.3-1.el8_3.aarch64.rpm ppc64le: thunderbird-78.4.3-1.el8_3.ppc64le.rpm thunderbird-debuginfo-78.4.3-1.el8_3.ppc64le.rpm thunderbird-debugsource-78.4.3-1.el8_3.ppc64le.rpm x86_64: thunderbird-78.4.3-1.el8_3.x86_64.rpm thunderbird-debuginfo-78.4.3-1.el8_3.x86_64.rpm thunderbird-debugsource-78.4.3-1.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-2020-26950 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 iQIVAwUBX7Ur/9zjgjWX9erEAQgAEA//REnUwcey9ABNZ4n4QyvWva7KlD+VOihp z7H79Dysk6/qpel4VP4EoO3W1fWcX7cYBk02QLcuy764O8veDA6xhfX//5ajgSlc AmzxIXYZvDuZEwIP1MSqd9RZ5pDQcjDqqUiAv4qr/KX4FR1GTHMiGXT8HGY73oHX Mcawmk+a9hf6kLeA84y7C7f5fLLXrmGNkm5zuuMz46O9YSZvDImij759meU32ghc nikYV128GcgSU0wH91vkRbnRT9shjDf2dqx8uvKrcStX3H1wN77+Zo7t2ggeU+M3 LOJu8TBD0Ne8bu4edG3lfoypPxAXN4Q/s+Qzj0rsoEcTrVwcYCyF8hyqFsejztt6 E1+EYDRpxwBstSwtb2B0Kl54UdOP1lQ0dqzrgEVd8efx40m8Zg8TRh8DRDkbDCC2 606vhpLaAoXQgtfkRXGy+/lW4dSeQ44wmJT328BXHzZFeXIRce2jh1tUjPVbmLU5 T9wtxItywu2zRTSS3By+uTEE8mSOA7WVXb6fGo9LmcAPe2enZ7c1idn4ny6REoLA sS1kf7/SORyb1JTo1oruZmYNWt++nSpIS6Pbl4EnBfoSFs4VELCyAtudSnV1BulQ P96RgTmTjMpEzLT79Mn3G1JXuNUhW1hTiT5rmte0lGrgG9rJcdNrrQtsPpCt9Dgl St9giJqbhZg=H1jm -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce