cve-2021-23993
Vulnerability from cvelistv5
Published
2021-06-24 13:26
Modified
2024-08-03 19:14
Severity ?
Summary
An attacker may perform a DoS attack to prevent a user from sending encrypted email to a correspondent. If an attacker creates a crafted OpenPGP key with a subkey that has an invalid self signature, and the Thunderbird user imports the crafted key, then Thunderbird may try to use the invalid subkey, but the RNP library rejects it from being used, causing encryption to fail. This vulnerability affects Thunderbird < 78.9.1.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1666360Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2021-13/Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1666360Issue Tracking, Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2021-13/Release Notes, Vendor Advisory
Impacted products
Vendor Product Version
Mozilla Thunderbird Version: unspecified   < 78.9.1
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