National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-18509 Detail

Current Description

A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren't covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird < 60.5.1.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.3 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html
http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2019/Apr/38 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/30/4 Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1144
https://bugzilla.mozilla.org/show_bug.cgi?id=1507218 Issue Tracking Permissions Required Vendor Advisory
https://github.com/RUB-NDS/Johnny-You-Are-Fired
https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
https://www.mozilla.org/security/advisories/mfsa2019-06/ Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-347 Improper Verification of Cryptographic Signature NIST  

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:mozilla:thunderbird
     Show Matching CPE(s)
Up to (excluding)
60.5.1


Change History

7 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-18509
NVD Published Date:
04/26/2019
NVD Last Modified:
06/03/2019