First published: Fri Sep 06 2019(Updated: )
Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward.
Credit: security@mozilla.org security@mozilla.org
Affected Software | Affected Version | How to fix |
---|---|---|
Mozilla Thunderbird | <60.9.0 | |
Mozilla Thunderbird | >=68.0<68.1.0 | |
Mozilla Thunderbird | <60.9 | 60.9 |
Mozilla Thunderbird | <68.1 | 68.1 |
debian/thunderbird | 1:115.12.0-1~deb11u1 1:128.4.0esr-1~deb11u1 1:115.16.0esr-1~deb12u1 1:128.4.0esr-1~deb12u1 1:128.4.2esr-1 1:128.4.3esr-1 |
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(Found alongside the following vulnerabilities)
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.
CVE-2019-11739 affects Thunderbird versions 60.9 up to but not including 68.1.
CVE-2019-11739 has a severity value of 7, which is considered high.
To fix CVE-2019-11739, update Thunderbird to version 60.9 or higher, but not including version 68.1.
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/).