#VU52375 Cleartext storage of sensitive information in Mozilla Thunderbird - CVE-2021-29950
Published: April 20, 2021
Vulnerability identifier: #VU52375
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-29950
CWE-ID: CWE-312
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Thunderbird
Mozilla Thunderbird
Software vendor:
Mozilla
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.
Remediation
Install updates from vendor's website.