CVE-2019-11755

Description

A crafted S/MIME message consisting of an inner encryption layer and an outer SignedData layer was shown as having a valid digital signature, although the signer might have had no access to the contents of the encrypted message, and might have stripped a different signature from the encrypted message. Previous versions had only suppressed showing a digital signature for messages with an outer multipart/signed layer. This vulnerability affects Thunderbird < 68.1.1.

References

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1240290

https://lists.debian.org/debian-lts-announce/2019/11/msg00017.html

https://seclists.org/bugtraq/2019/Nov/24

https://usn.ubuntu.com/4202-1/

https://usn.ubuntu.com/4335-1/

https://www.debian.org/security/2019/dsa-4571

https://www.mozilla.org/security/advisories/mfsa2019-32/

Details

Risk Information

CVSS v2

CVSS v3