RHSA-2023:1806 — Security Advisory

An update for thunderbird is now available for Red Hat Enterprise Linux 7.

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 102.10.0.

Security Fix(es):

• Thunderbird: Revocation status of S/Mime recipient certificates was not checked (CVE-2023-0547)

• Mozilla: Matrix SDK bundled with Thunderbird vulnerable to denial-of-service attack (CVE-2023-28427)

• Mozilla: Fullscreen notification obscured (CVE-2023-29533)

• Mozilla: Potential Memory Corruption following Garbage Collector compaction (CVE-2023-29535)

• Mozilla: Invalid free from JavaScript code (CVE-2023-29536)

• Mozilla: Memory safety bugs fixed in Firefox 112 and Firefox ESR 102.10 (CVE-2023-29550)

• Mozilla: Memory Corruption in Safe Browsing Code (CVE-2023-1945)

• Thunderbird: Hang when processing certain OpenPGP messages (CVE-2023-29479)

• Mozilla: Content-Disposition filename truncation leads to Reflected File Download (CVE-2023-29539)

• Mozilla: Files with malicious extensions could have been downloaded unsafely on Linux (CVE-2023-29541)

• Mozilla: Incorrect optimization result on ARM64 (CVE-2023-29548)

• MFSA-TMP-2023-0001 Mozilla: Double-free in libwebp (BZ#2186102)

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.