RHSA-2020:2907 — Security Advisory

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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 68.10.0.

Security Fix(es):

• Mozilla: Memory corruption due to missing sign-extension for ValueTags on ARM64 (CVE-2020-12417)

• Mozilla: Information disclosure due to manipulated URL object (CVE-2020-12418)

• Mozilla: Use-after-free in nsGlobalWindowInner (CVE-2020-12419)

• Mozilla: Use-After-Free when trying to connect to a STUN server (CVE-2020-12420)

• Mozilla: Add-On updates did not respect the same certificate trust rules as software updates (CVE-2020-12421)

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.