5.3

CVE-2018-18509

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Thunderbird Version < 60.5.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.68% 0.739
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.3 3.9 1.4
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:P/A:N
CWE-347 Improper Verification of Cryptographic Signature

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

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