Arbitrary Code Injection Affecting thunderbird package, versions <1:60.8.0-1

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

As part of a winning Pwn2Own entry, a researcher demonstrated a sandbox escape by installing a malicious language pack and then opening a browser feature that used the compromised translation. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

• https://security-tracker.debian.org/tracker/CVE-2019-9811
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9811
• https://lists.debian.org/debian-lts-announce/2019/08/msg00001.html
• https://lists.debian.org/debian-lts-announce/2019/08/msg00002.html
• https://security.gentoo.org/glsa/201908-12
• https://security.gentoo.org/glsa/201908-20
• https://www.mozilla.org/security/advisories/mfsa2019-21/
• https://www.mozilla.org/security/advisories/mfsa2019-22/
• https://www.mozilla.org/security/advisories/mfsa2019-23/
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html
• https://bugzilla.mozilla.org/show_bug.cgi?id=1538007
• https://bugzilla.mozilla.org/show_bug.cgi?id=1539598
• https://bugzilla.mozilla.org/show_bug.cgi?id=1563327
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.html
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
• http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-9811