Debian Linux Security Advisory 5034-1 - Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code, spoofing, information disclosure, downgrade attacks on SMTP STARTTLS connections or misleading display of OpenPGP/MIME signatures.
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Ubuntu Security Notice 5248-1 - 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, trick a user into accepting unwanted permissions, conduct header splitting attacks, conduct spoofing attacks, bypass security restrictions, confuse the user, or execute arbitrary code.
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Red Hat Security Advisory 2021-3841-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.2.0. Issues addressed include double free and use-after-free vulnerabilities.
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Red Hat Security Advisory 2021-3838-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.2.0. Issues addressed include double free and use-after-free vulnerabilities.
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Red Hat Security Advisory 2021-3840-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.2.0. Issues addressed include double free and use-after-free vulnerabilities.
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Red Hat Security Advisory 2021-3839-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.2.0. Issues addressed include double free and use-after-free vulnerabilities.
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