CVE - CVE-2018-18509

CVE-ID
CVE-2018-18509	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
FULLDISC:20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients URL:http://seclists.org/fulldisclosure/2019/Apr/38 MISC:http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html MISC:https://bugzilla.mozilla.org/show_bug.cgi?id=1507218 MISC:https://github.com/RUB-NDS/Johnny-You-Are-Fired MISC:https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf MISC:https://www.mozilla.org/security/advisories/mfsa2019-06/ MLIST:[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients) URL:http://www.openwall.com/lists/oss-security/2019/04/30/4 REDHAT:RHSA-2019:1144 URL:https://access.redhat.com/errata/RHSA-2019:1144 SUSE:openSUSE-SU-2019:1162 URL:http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html
Assigning CNA
Mozilla Corporation
Date Record Created
20181019	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20181019)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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