Veracode Vulnerability DatabaseVERACODE:28257S/MIME Message Takeover
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
thunderbird is vulnerable to S/MIME Message Takeover Attacks. A malicious S/MIME message consisting of an inner encryption layer and an outer SignedData layer was shown as having a valid digital signature despite the signer having no access to the contents of the encrypted message.
References
lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
bugzilla.mozilla.org/show_bug.cgi?id=1240290
lists.debian.org/debian-lts-announce/2019/11/msg00017.html
seclists.org/bugtraq/2019/Nov/24
security-tracker.debian.org/tracker/CVE-2019-11755
usn.ubuntu.com/4202-1/
usn.ubuntu.com/4335-1/
www.debian.org/security/2019/dsa-4571
www.mozilla.org/security/advisories/mfsa2019-32/
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N