CVE-2019-11739: Medium severity Mozilla Thunderbird vulnerability
Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward.
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is CVE-2019-11739?
CVE-2019-11739 is a vulnerability in Mozilla Thunderbird that allows encrypted S/MIME parts in a crafted multipart/alternative message to leak plaintext when included in a HTML reply or forward.
How does CVE-2019-11739 affect Thunderbird?
CVE-2019-11739 affects Thunderbird versions 60.9 up to but not including 68.1.
What is the severity of CVE-2019-11739?
CVE-2019-11739 has a severity value of 7, which is considered high.
How can I fix CVE-2019-11739?
To fix CVE-2019-11739, update Thunderbird to version 60.9 or higher, but not including version 68.1.
Where can I find more information about CVE-2019-11739?
You can find more information about CVE-2019-11739 in the following references: [Mozilla Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1571481), [Mozilla Security Advisories](https://www.mozilla.org/en-US/security/advisories/mfsa2019-30/) and [Mozilla Security Advisories](https://www.mozilla.org/en-US/security/advisories/mfsa2019-29/).