#VU52375 Cleartext storage of sensitive information

Published: 2021-04-20

Vulnerability identifier: #VU52375

Vulnerability risk: Low


CVE-ID: CVE-2021-29950


Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Mozilla Thunderbird
Client/Desktop applications / Messaging software

Vendor: Mozilla


The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to the way Thunderbird handles secret OpenPGP keys. The application unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. A local user or malicious application can read the key and use it to decrypt email messages.

Install updates from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 78.0 - 78.9.0, 68.0 - 68.12.1, 60.0 - 60.9.1


External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

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