CVE - CVE-2021-23993

CVE-ID
CVE-2021-23993	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://bugzilla.mozilla.org/show_bug.cgi?id=1666360 URL:https://bugzilla.mozilla.org/show_bug.cgi?id=1666360 MISC:https://www.mozilla.org/security/advisories/mfsa2021-13/ URL:https://www.mozilla.org/security/advisories/mfsa2021-13/
Assigning CNA
Mozilla Corporation
Date Record Created
20210113	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210113)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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