#VU52375 Cleartext storage of sensitive information


Published: 2021-04-20

Vulnerability identifier: #VU52375

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-29950

CWE-ID: CWE-312

Exploitation vector: Local

Exploit availability: No

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

Vendor: Mozilla

Description

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.

Mitigation
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


CPE

External links
http://www.mozilla.org/en-US/security/advisories/mfsa2021-17/


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability