RHSA-2023:0820 — Security Advisory

An update for thunderbird is now available for Red Hat Enterprise Linux 8.4 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.

[Updated 09 March 2023]

The CVE-2023-0767 was previously incorrectly listed as fixed in this erratum. The CVE list was updated to remove the CVE. No changes have been made to the packages.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 102.8.0.

Security Fix(es):

• Mozilla: Content security policy leak in violation reports using iframes (CVE-2023-25728)

• Mozilla: Screen hijack via browser fullscreen mode (CVE-2023-25730)

• Mozilla: Potential use-after-free from compartment mismatch in SpiderMonkey (CVE-2023-25735)

• Mozilla: Invalid downcast in SVGUtils::SetupStrokeGeometry (CVE-2023-25737)

• Mozilla: Use-after-free in mozilla::dom::ScriptLoadContext::~ScriptLoadContext (CVE-2023-25739)

• Mozilla: Fullscreen notification not shown in Firefox Focus (CVE-2023-25743)

• Mozilla: Memory safety bugs fixed in Firefox 110 and Firefox ESR 102.8 (CVE-2023-25744)

• Mozilla: Memory safety bugs fixed in Firefox ESR 102.8 (CVE-2023-25746)

• Mozilla: Extensions could have opened external schemes without user knowledge (CVE-2023-25729)

• Mozilla: Out of bounds memory write from EncodeInputStream (CVE-2023-25732)

• Mozilla: User Interface lockup with messages combining S/MIME and OpenPGP (CVE-2023-0616)

• Mozilla: Web Crypto ImportKey crashes tab (CVE-2023-25742)

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.