Description
Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 68.1 and Thunderbird < 60.9.
References (6)
Core 6
Core References
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1571481
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2019-29/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2019-30/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4150-1/
Scores
CVSS v3
6.5
EPSS
0.0027
EPSS Percentile
50.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Details
CWE
CWE-319
Status
published
Products (1)
mozilla/thunderbird
< 60.9.0
Published
Sep 27, 2019
Tracked Since
Feb 18, 2026