CVEvulnerability
CVE-2018-18509
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2019-04-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 5.3 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-347
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.
Affected configurations
• mozilla thunderbird (< 60.5.1)
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html lists.opensuse.org
- 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 access.redhat.com
- https://bugzilla.mozilla.org/show_bug.cgi?id=1507218 Issue Tracking, Permissions Required, Vendor Advisory
- https://github.com/RUB-NDS/Johnny-You-Are-Fired github.com
- https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf github.com
- https://www.mozilla.org/security/advisories/mfsa2019-06/ Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html lists.opensuse.org
- 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 access.redhat.com
- https://bugzilla.mozilla.org/show_bug.cgi?id=1507218 Issue Tracking, Permissions Required, Vendor Advisory
- https://github.com/RUB-NDS/Johnny-You-Are-Fired github.com
- https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf github.com
- https://www.mozilla.org/security/advisories/mfsa2019-06/ Vendor Advisory