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
Link | Resource |
---|---|
https://bugzilla.mozilla.org/show_bug.cgi?id=1666360 | Issue Tracking Permissions Required Vendor Advisory |
https://www.mozilla.org/security/advisories/mfsa2021-13/ | Release Notes Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mozilla
Published: 2021-06-24T13:26:39
Updated: 2021-06-24T13:26:39
Reserved: 2021-01-13T00:00:00
Link: CVE-2021-23993
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-06-24T14:15:09.257
Modified: 2023-08-08T14:22:24.967
Link: CVE-2021-23993
JSON object: View
Redhat Information
No data.
CWE