A crafted S/MIME message consisting of an inner encryption layer...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1240290
- https://www.mozilla.org/security/advisories/mfsa2019-32/
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
- https://seclists.org/bugtraq/2019/Nov/24
- https://www.debian.org/security/2019/dsa-4571
- https://lists.debian.org/debian-lts-announce/2019/11/msg00017.html
- https://usn.ubuntu.com/4202-1/
- https://usn.ubuntu.com/4335-1/
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Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.