RHSA-2023:0818: Important: thunderbird security update
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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2023:0818?
The severity of RHSA-2023:0818 is categorized as high due to the significant security vulnerabilities it addresses in Mozilla Thunderbird.
How do I fix RHSA-2023:0818?
To fix RHSA-2023:0818, upgrade Mozilla Thunderbird to version 102.8.0 available from Red Hat.
What vulnerabilities are addressed in RHSA-2023:0818?
RHSA-2023:0818 addresses a content security policy leak and a screen hijack vulnerability.
Which versions of Thunderbird are affected by RHSA-2023:0818?
RHSA-2023:0818 affects versions of Thunderbird prior to 102.8.0-2.el8_1.
Is there a need to restart after applying RHSA-2023:0818?
Yes, a restart is recommended after applying RHSA-2023:0818 to ensure all security updates take effect.