RHSA-2023:0819: Important: thunderbird security update

Published Feb 20, 2023
·
Updated

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

7 affected componentsFixes available
redhat/thunderbird<102.8.0-2.el8_2
102.8.0-2.el8_2
redhat/thunderbird<102.8.0-2.el8_2
102.8.0-2.el8_2
redhat/thunderbird-debuginfo<102.8.0-2.el8_2
102.8.0-2.el8_2
redhat/thunderbird-debugsource<102.8.0-2.el8_2
102.8.0-2.el8_2
redhat/thunderbird<102.8.0-2.el8_2
102.8.0-2.el8_2
redhat/thunderbird-debuginfo<102.8.0-2.el8_2
102.8.0-2.el8_2
redhat/thunderbird-debugsource<102.8.0-2.el8_2
102.8.0-2.el8_2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/thunderbird to a version that resolves this vulnerability.

    Fixed in 102.8.0-2.el8_2
  2. Upgrade

    Upgrade redhat/thunderbird-debuginfo to a version that resolves this vulnerability.

    Fixed in 102.8.0-2.el8_2
  3. Upgrade

    Upgrade redhat/thunderbird-debugsource to a version that resolves this vulnerability.

    Fixed in 102.8.0-2.el8_2
  4. Upgrade

    Upgrade thunderbird to a version that resolves this vulnerability.

    Fixed in 102.8.0-2.el8_2
  5. Upgrade

    Upgrade thunderbird (x86_64) to a version that resolves this vulnerability.

    Fixed in 102.8.0-2.el8_2
  6. Upgrade

    Upgrade thunderbird (ppc64le) to a version that resolves this vulnerability.

    Fixed in 102.8.0-2.el8_2

Event History

Jul 28, 2026
Advisory Published
via Red Hat·09:47 PM
Data Sourced
via Red Hat·09:47 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2023:0819?

The severity of RHSA-2023:0819 is classified as a moderate security issue.

2

How do I fix RHSA-2023:0819?

To fix RHSA-2023:0819, update Thunderbird to version 102.8.0-2.el8_2.

3

What vulnerabilities are addressed in RHSA-2023:0819?

RHSA-2023:0819 addresses a content security policy leak and a screen hijack vulnerability.

4

What versions of Thunderbird are affected by RHSA-2023:0819?

RHSA-2023:0819 affects multiple versions of Thunderbird prior to 102.8.0-2.el8_2.

5

Is there a recommended action for users of Thunderbird?

Users of Thunderbird should prioritize upgrading to the latest version to mitigate the vulnerabilities in RHSA-2023:0819.

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