-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2021:0658-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0658 Issue date: 2021-02-24 CVE Names: CVE-2021-23968 CVE-2021-23969 CVE-2021-23973 CVE-2021-23978 ==================================================================== 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 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. 8.1) - ppc64le, x86_64 3. Description: Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0. Security Fix(es): * Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23968) * Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23969) * Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8 (CVE-2021-23978) * Mozilla: MediaError message property could have leaked information about cross-origin resources (CVE-2021-23973) 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/): 1932109 - CVE-2021-23969 Mozilla: Content Security Policy violation report could have contained the destination of a redirect 1932110 - CVE-2021-23968 Mozilla: Content Security Policy violation report could have contained the destination of a redirect 1932111 - CVE-2021-23973 Mozilla: MediaError message property could have leaked information about cross-origin resources 1932112 - CVE-2021-23978 Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.1): Source: thunderbird-78.8.0-1.el8_1.src.rpm ppc64le: thunderbird-78.8.0-1.el8_1.ppc64le.rpm thunderbird-debuginfo-78.8.0-1.el8_1.ppc64le.rpm thunderbird-debugsource-78.8.0-1.el8_1.ppc64le.rpm x86_64: thunderbird-78.8.0-1.el8_1.x86_64.rpm thunderbird-debuginfo-78.8.0-1.el8_1.x86_64.rpm thunderbird-debugsource-78.8.0-1.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-2021-23968 https://access.redhat.com/security/cve/CVE-2021-23969 https://access.redhat.com/security/cve/CVE-2021-23973 https://access.redhat.com/security/cve/CVE-2021-23978 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 iQIVAwUBYDZyYtzjgjWX9erEAQiaug/+Kt/MvYjZb8KNycc0frK3y1iCF+oahuyU iHbVZZ8OEk/dcLo3y5Losnfl1Z8TILN7HFVlSw+KYyn5vd29bvF9zdI6iCLiQbyA 2B+EMmW0zGo8fWDCbt94tVJwNA8vRt2B0U9Wul6/xdBxhU5/dxsw2cNmbpJmzDwu WPwoH7cstcFkjdwUxLCTBCWBCeFjGUIJyIVJqiTWWGYRYjgLeH3rc2uCkuxlqfHK Epg+StRr6siXnlpx23FDHTnhoHbERKtOfbQ40IxujjCD0YGwyve2RSHFV7xisZDz vFLk/y+bv10dXRAy8LyGsp4gGiz3ElTRl2aeLv9uwxn/aiLuq9RbfIPo1U78vaQc XUHBHdxJQlDZZy8IvLlMkOKcjfjdfqBpAK41GthQg7n0ywNFX/w2Dj1PAdQ3dRex O+SdV5+Zgdlf22Rp1qjIOztTgUuQM5rJ+ych0x+r8sZhhWd/tAudsUnEw6mCIjRU VPr+3PAtAF8aKhGfrDmAHOenENQG+2ZeW1lKTomD3rFoMpqQyZ9/B8LVbZXF3ROW 6x1U2//kdNrJQaKzi0rLlLFGREptIcYBRgk4odk5mBQ6EIO0qiipfLXMxRREvSIN uQRvpTdtq5aHcddR7I9kCkc5gLFTfp3H5+5RLeAMU5KqdDE7KRR2jPkW9qrNkM3G isNpTsd6r2M=zP5N -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce