-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2021:3162-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:3162 Issue date: 2021-08-16 CVE Names: CVE-2021-29980 CVE-2021-29984 CVE-2021-29985 CVE-2021-29986 CVE-2021-29988 CVE-2021-29989 ===================================================================== 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 78.13.0. Security Fix(es): * Mozilla: Uninitialized memory in a canvas object could have led to memory corruption (CVE-2021-29980) * Mozilla: Incorrect instruction reordering during JIT optimization (CVE-2021-29984) * Mozilla: Race condition when resolving DNS names could have led to memory corruption (CVE-2021-29986) * Mozilla: Memory corruption as a result of incorrect style treatment (CVE-2021-29988) * Mozilla: Memory safety bugs fixed in Thunderbird 78.13 (CVE-2021-29989) * Mozilla: Use-after-free media channels (CVE-2021-29985) 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/): 1992417 - CVE-2021-29986 Mozilla: Race condition when resolving DNS names could have led to memory corruption 1992419 - CVE-2021-29988 Mozilla: Memory corruption as a result of incorrect style treatment 1992420 - CVE-2021-29984 Mozilla: Incorrect instruction reordering during JIT optimization 1992421 - CVE-2021-29980 Mozilla: Uninitialized memory in a canvas object could have led to memory corruption 1992422 - CVE-2021-29985 Mozilla: Use-after-free media channels 1992423 - CVE-2021-29989 Mozilla: Memory safety bugs fixed in Thunderbird 78.13 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.2): Source: thunderbird-78.13.0-1.el8_2.src.rpm aarch64: thunderbird-78.13.0-1.el8_2.aarch64.rpm thunderbird-debuginfo-78.13.0-1.el8_2.aarch64.rpm thunderbird-debugsource-78.13.0-1.el8_2.aarch64.rpm ppc64le: thunderbird-78.13.0-1.el8_2.ppc64le.rpm thunderbird-debuginfo-78.13.0-1.el8_2.ppc64le.rpm thunderbird-debugsource-78.13.0-1.el8_2.ppc64le.rpm x86_64: thunderbird-78.13.0-1.el8_2.x86_64.rpm thunderbird-debuginfo-78.13.0-1.el8_2.x86_64.rpm thunderbird-debugsource-78.13.0-1.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-2021-29980 https://access.redhat.com/security/cve/CVE-2021-29984 https://access.redhat.com/security/cve/CVE-2021-29985 https://access.redhat.com/security/cve/CVE-2021-29986 https://access.redhat.com/security/cve/CVE-2021-29988 https://access.redhat.com/security/cve/CVE-2021-29989 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: GnuPG v1 iQIVAwUBYRo3mtzjgjWX9erEAQg8lhAAmLRlXGfyx8LztD480Yp1wNAv30i5jV2a KaLOvblZlck7rYqroY1+FIC5ihObGrMadGpJ4Rb66dCHNaBapWvN0+aPsCmmaWdS 7KBgEna/n7/H4gEOHrQ9hbh8rNoiACAUnVQuD+tdRgsI+BQojU0gssAz/cUEO6qP P052QVu40Byl8l27R+jW1gnFzbEm7V6mkcBxlfNh7QValDYpeTQOKELxNRL/02z2 d+SLotTDsOGbYOeo8nygf+kcqu28dzz2zPbsFFH8l6GaoObpQZGVH5wIMfOE+ehD ndfrvuqcBaw5h55bYSdG+FxZuadmN3pUHourozPF4m3Yn/mcOMVKf4uixNJEf9jR k0AqKQJVpCiSMYWTK4Fz11tilC7Q5P/unQ9xUSLvIil/9AIDq/5XRWXLXxPhcaFH 42kZBolvmGr/mTQdFv75Zsoq2po2eTnr11guBo3UeBG/ChGo/LHBkIamPlO5GTXz tFI8d5o1IBAWo9vV3trR5hmceUsZRzNzbcOk5eAjUIWmrxiTAr6Uz1iNhRP/7oTB F/PpUbpJ7geAL39fI7HYn+vm6sOFot+gM2RpfuD1sgs9rTxPjTCpL1nriNpulk0T RIUPT2Grps/KDG1/RFGakSj3FNKfgOwINR8fKDilH38aEXAF/XAwv0qp1fD3BWgy SEqi6LFsum8= =lWJE -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce