Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass security restrictions, cross-site tracing, or execute arbitrary code. (CVE-2023-1945, CVE-2023-29548, CVE-2023-29550) Paul Menzel discovered that Thunderbird did not properly validate OCSP revocation status of recipient certificates when sending S/Mime encrypted email. An attacker could potentially exploits this issue to perform spoofing attack. (CVE-2023-0547) Ribose RNP Team discovered that Thunderbird did not properly manage memory when parsing certain OpenPGP messages. An attacker could potentially exploits this issue to cause a denial of service. (CVE-2023-29479) Irvan Kurniawan discovered that Thunderbird did not properly manage fullscreen notifications using a combination of window.open, fullscreen requests, window.name assignments, and setInterval calls. An attacker could potentially exploit this issue to perform spoofing attacks. (CVE-2023-29533) Lukas Bernhard discovered that Thunderbird did not properly manage memory when doing Garbage Collector compaction. An attacker could potentially exploits this issue to cause a denial of service. (CVE-2023-29535) Zx from qriousec discovered that Thunderbird did not properly validate the address to free a pointer provided to the memory manager. An attacker could potentially exploits this issue to cause a denial of service. (CVE-2023-29536) Trung Pham discovered that Thunderbird did not properly validate the filename directive in the Content-Disposition header. An attacker could possibly exploit this to perform reflected file download attacks potentially tricking users to install malware. (CVE-2023-29539) Ameen Basha M K discovered that Thunderbird did not properly validate downloads of files ending in .desktop. An attacker could potentially exploits this issue to execute arbitrary code. (CVE-2023-29541)
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