-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: firefox security update Advisory ID: RHSA-2020:3833-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:3833 Issue date: 2020-09-24 CVE Names: CVE-2020-15673 CVE-2020-15676 CVE-2020-15677 CVE-2020-15678 ==================================================================== 1. Summary: An update for firefox 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) - aarch64, ppc64le, s390x, x86_64 3. Description: Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.3.0 ESR. Security Fix(es): * Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3 (CVE-2020-15673) * Mozilla: XSS when pasting attacker-controlled data into a contenteditable element (CVE-2020-15676) * Mozilla: Download origin spoofing via redirect (CVE-2020-15677) * Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario (CVE-2020-15678) 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 After installing the update, Firefox must be restarted for the changes to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1881664 - CVE-2020-15677 Mozilla: Download origin spoofing via redirect 1881665 - CVE-2020-15676 Mozilla: XSS when pasting attacker-controlled data into a contenteditable element 1881666 - CVE-2020-15678 Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario 1881667 - CVE-2020-15673 Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.1): Source: firefox-78.3.0-1.el8_1.src.rpm aarch64: firefox-78.3.0-1.el8_1.aarch64.rpm firefox-debuginfo-78.3.0-1.el8_1.aarch64.rpm firefox-debugsource-78.3.0-1.el8_1.aarch64.rpm ppc64le: firefox-78.3.0-1.el8_1.ppc64le.rpm firefox-debuginfo-78.3.0-1.el8_1.ppc64le.rpm firefox-debugsource-78.3.0-1.el8_1.ppc64le.rpm s390x: firefox-78.3.0-1.el8_1.s390x.rpm firefox-debuginfo-78.3.0-1.el8_1.s390x.rpm firefox-debugsource-78.3.0-1.el8_1.s390x.rpm x86_64: firefox-78.3.0-1.el8_1.x86_64.rpm firefox-debuginfo-78.3.0-1.el8_1.x86_64.rpm firefox-debugsource-78.3.0-1.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-2020-15673 https://access.redhat.com/security/cve/CVE-2020-15676 https://access.redhat.com/security/cve/CVE-2020-15677 https://access.redhat.com/security/cve/CVE-2020-15678 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 iQIVAwUBX2xuM9zjgjWX9erEAQgoHg/+L3H+wUneU44xvAuSaYMMdjOk7uSDJ93+ MlpiM4Eu6oUlV2JJ1NICvXxc5SW3X3gnKsLNRjB+w4iSWF6xo3+rUUN4vm42PP7f XyX64Ypaz0C+WoiMOQUrirp5i/hfMnHR98X4TRTHpUiK/Gdyl1HYwm+krDz8CY/Z ttPiQTv5/naCGGI5bNgyD+M04Q4TzaCxW8mD1Mv0wV2pqRGUNpXlf/P199P0T7Hr 6g5t9xO8HmO/MXEr0WSmBZErSrh1upmjRUhR8+KTbnjODKIgv9jZVm3pmyeD5bJO lnX/dUzBMuIURYe+99WAemWLHE9VZ5Qo6uV21R1C6ZGK1XQoHQnT2llk97LcHNjP z7mvTxoD6ZZN8TAtkljDXxh1PDUFuvja2R6il3+XBrEz27n1KJw+tb6LfZXKspsG lXRLo0XeTEYAbkKwFqhO9D4iSy8ISqrBL7c6zUF78mH1lGd6O8HoKgmorAFIX9Aa K0OXTZ0dSWOxdhOzcjGW4XrZ6K1TRHMhMHUO3AfzNIn/qpEOXDsODQCSNNWWRSrB 2NIWzuSVUdUF6yCliUVa/OdTaQCIBxzFuqdTBUnSsPDxmx3aH759Lg3FBMNyQs5e DxXzP/43Jt/gYqu0INKMBX0RdZ4vD/LR+C8S3M7Nmnrhq9jnPyF44mAn9IdmwCYl qINxXFyzQiA=wLzH -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce