Information disclosure in Mozilla Thunderbird - CVE-2019-11739

 

Information disclosure in Mozilla Thunderbird - CVE-2019-11739

Published: September 13, 2019


Vulnerability identifier: #VU21106
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-11739
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Thunderbird

Detailed vulnerability description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an error when processing multipart messages. A remote attacker can create a specially crafted multipart/alternative message that can leak encrypted S/MIME parts when included in a a HTML reply/forward.


How to mitigate CVE-2019-11739

Install updates from vendor's website.

Sources