Rocky Linux 8 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2023_0821)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20230821 advisory. Mozilla: Arbitrary memory write via PKCS 12 in NSS CVE-2023-0767 Mozilla: Content security policy leak in violation reports using iframes CVE-2023-25728...

Rocky Linux 8 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2025_8756)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20258756 advisory. thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link CVE-2025-3909 thunderbird: Sender Spoofing via Malformed From Header in...

Rocky Linux 9 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2025_8607)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20258607 advisory. firefox: thunderbird: Out-of-bounds access when resolving Promise objects CVE-2025-4918 firefox: thunderbird: Out-of-bounds access when optimizing linear...

Rocky Linux 9 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2023_0824)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20230824 advisory. Mozilla: Arbitrary memory write via PKCS 12 in NSS CVE-2023-0767 Mozilla: Content security policy leak in violation reports using iframes CVE-2023-25728...

CVE-2026-103500

A flaw was found in Thunderbird. A remote attacker could exploit this vulnerability by convincing a user to open an email that is 2GB or larger, triggering a heap buffer overflow. This flaw allows an attacker to corrupt memory, which may cause an application crash, resulting in a Denial of Servic...

DEBIAN-CVE-2026-103500

An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4...

CVE-2026-103500

An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4...

UBUNTU-CVE-2026-103500

An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4...

CVE-2026-103500

An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4...

CVE-2026-103500

The Thunderbird email client is vulnerable to a heap buffer overflow when a user opens an email with a size greater than or equal to 2GB . This issue can be triggered by an attacker by tricking a user into opening such a large message. The vulnerability has been addressed in Thunderbird versions ...

EUVD-2026-90200

An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4...

CVE-2026-103500 Heap buffer overflow opening large email

An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4...

firefox: thunderbird: Privilege escalation in the WebExtensions component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the WebExtensions component...

firefox: thunderbird: Use-after-free in the XML component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the XML component...

thunderbird: Information disclosure due to malicious IMAP server response

A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js...

thunderbird: Thunderbird: Out-of-bounds read via maliciously constructed IMAP line

A flaw was found in Thunderbird. A remote attacker could exploit this vulnerability by sending a maliciously constructed Internet Message Access Protocol IMAP line. This could lead to an out-of-bounds buffer read, potentially resulting in information disclosure or a denial of service...

firefox: thunderbird: Use-after-free in the Audio/Video: Web Codecs component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the Audio/Video: Web Codecs component...

thunderbird: Thunderbird: Memory safety violations via maliciously crafted mail headers

A flaw was found in Thunderbird where a maliciously constructed mail header could lead to ambiguous parsing. This vulnerability could result in multiple mail header fields being incorrectly interpreted as one, or cause memory safety violations. A remote attacker could potentially exploit this to...

firefox: thunderbird: Use-after-free in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine: JIT component...

thunderbird: Out-of-bounds read in IMAP response parser

A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by sending an untagged ' ID' response, crashing Thunderbird. The affected parsing path is...