-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: thunderbird security update Advisory ID: RHSA-2020:1488-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:1488 Issue date: 2020-04-16 CVE Names: CVE-2020-6819 CVE-2020-6820 CVE-2020-6821 CVE-2020-6822 CVE-2020-6825 ==================================================================== 1. Summary: An update for thunderbird is now available for Red Hat Enterprise Linux 6. 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 Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.7.0. Security Fix(es): * Mozilla: Use-after-free while running the nsDocShell destructor (CVE-2020-6819) * Mozilla: Use-after-free when handling a ReadableStream (CVE-2020-6820) * Mozilla: Uninitialized memory could be read when using the WebGL copyTexSubImage method (CVE-2020-6821) * Mozilla: Memory safety bugs fixed in Firefox 75 and Firefox ESR 68.7 (CVE-2020-6825) * Mozilla: Out of bounds write in GMPDecodeData when processing large images (CVE-2020-6822) 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/): 1820869 - CVE-2020-6819 Mozilla: Use-after-free while running the nsDocShell destructor 1820878 - CVE-2020-6820 Mozilla: Use-after-free when handling a ReadableStream 1821674 - CVE-2020-6821 Mozilla: Uninitialized memory could be read when using the WebGL copyTexSubImage method 1821676 - CVE-2020-6822 Mozilla: Out of bounds write in GMPDecodeData when processing large images 1821682 - CVE-2020-6825 Mozilla: Memory safety bugs fixed in Firefox 75 and Firefox ESR 68.7 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: thunderbird-68.7.0-1.el6_10.src.rpm i386: thunderbird-68.7.0-1.el6_10.i686.rpm thunderbird-debuginfo-68.7.0-1.el6_10.i686.rpm x86_64: thunderbird-68.7.0-1.el6_10.x86_64.rpm thunderbird-debuginfo-68.7.0-1.el6_10.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: thunderbird-68.7.0-1.el6_10.src.rpm i386: thunderbird-68.7.0-1.el6_10.i686.rpm thunderbird-debuginfo-68.7.0-1.el6_10.i686.rpm ppc64: thunderbird-68.7.0-1.el6_10.ppc64.rpm thunderbird-debuginfo-68.7.0-1.el6_10.ppc64.rpm s390x: thunderbird-68.7.0-1.el6_10.s390x.rpm thunderbird-debuginfo-68.7.0-1.el6_10.s390x.rpm x86_64: thunderbird-68.7.0-1.el6_10.x86_64.rpm thunderbird-debuginfo-68.7.0-1.el6_10.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: thunderbird-68.7.0-1.el6_10.src.rpm i386: thunderbird-68.7.0-1.el6_10.i686.rpm thunderbird-debuginfo-68.7.0-1.el6_10.i686.rpm x86_64: thunderbird-68.7.0-1.el6_10.x86_64.rpm thunderbird-debuginfo-68.7.0-1.el6_10.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-2020-6819 https://access.redhat.com/security/cve/CVE-2020-6820 https://access.redhat.com/security/cve/CVE-2020-6821 https://access.redhat.com/security/cve/CVE-2020-6822 https://access.redhat.com/security/cve/CVE-2020-6825 https://access.redhat.com/security/updates/classification/#important https://www.mozilla.org/en-US/security/advisories/mfsa2020-14/ 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 iQIVAwUBXpgtl9zjgjWX9erEAQhkvhAAgJK8UAAMxSq7blDzb0V4U1nGRYthl2zQ ZEYK0PmAOn9DMZZzQpKN6flVdLF6twgnEJiZCUmZe3VnqirCUaBwLCfj73EZ1PG5 iIaI5XMl+jdtSNO/U1hiiVBNr/92ik7xjvao1mhwdd6dtsWpHWdbD9p/au4LoWrB PvcEgYpzRM1ZJv41PC+y6vzYUVF3tBJIMyLSnPS3Zcp0FUHPstQn9cQhYmhNBwwd jL5rsBfR2vmnQPhhlnj9a4hQmosyY+0MK2GGefn4E0LvSJBm6Or1BTJ4RkSF0Maq Z5PIKRnWX7NaZzPM0DNg6QojSMac3g99dAPN4Dy+D+TXzLAMn2k4fZYMDaCGpIfu 7ocFwQeqXZUlg1QO4phgPUUNQofHLkKggS6NTuO1LxGTegWh22tXM7xa/sHbIkCz marBJk2GAZEEDACU134DAOkbG3Rd7p7BQ+eqOOrTw7B/1zOFYCSkQujvHwWZ10Kn fn3A71pQCHE3ZUrh1/9PWGkV/CyIIkM3RIaLIodwjf8V78iljShgRtFhvprY5KXw q+KgERepv6BCBZgBpLnrNTv13MpM8YYhIh8K85Ss2Q9oALU9se44gt5zmbCGc5js JXkdsreq7TnfcmKzHb3M4tAtmMEoQG8tmONbVoayZ/nvd3o3KNOQRDSlKkR4eP1D tEeancuuR8Y=X03K -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce