RHSA-2023:4492 — Security Advisory

Red Hat Security Advisory: thunderbird security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · August 7, 2023

Updated · June 26, 2026

Topic

An update for thunderbird is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions.

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.

Description

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 102.14.0.

Security Fix(es):

  • Mozilla: Offscreen Canvas could have bypassed cross-origin restrictions (CVE-2023-4045)

  • Mozilla: Incorrect value used during WASM compilation (CVE-2023-4046)

  • Mozilla: Potential permissions request bypass via clickjacking (CVE-2023-4047)

  • Mozilla: Crash in DOMParser due to out-of-memory conditions (CVE-2023-4048)

  • Mozilla: Fix potential race conditions when releasing platform objects (CVE-2023-4049)

  • Mozilla: Stack buffer overflow in StorageManager (CVE-2023-4050)

  • Mozilla: Memory safety bugs fixed in Firefox 116, Firefox ESR 115.1, Firefox ESR 102.14, Thunderbird 115.1, and Thunderbird 102.14 (CVE-2023-4056)

  • Mozilla: Memory safety bugs fixed in Firefox ESR 115.1, and Thunderbird 115.1 (CVE-2023-4057)

  • thunderbird: File Extension Spoofing using the Text Direction Override Character (CVE-2023-3417)

  • Mozilla: Cookie jar overflow caused unexpected cookie jar state (CVE-2023-4055)

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.

Related CVEs

RHSA-2023:4492 — Red Hat Security Advisory: thunderbird security update | PulseLinux