NVD Vulnerability Detail

CVE-2018-18509

Summary	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.
Publication Date	April 27, 2019, 2:29 a.m.
Registration Date	March 1, 2021, 7:10 p.m.
Last Update	Nov. 21, 2024, 12:56 p.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:mozilla:thunderbird::::::::					60.5.1

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html
2	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html
3	http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html	Third Party Advisory VDB Entry
4	http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html	Third Party Advisory VDB Entry
5	http://seclists.org/fulldisclosure/2019/Apr/38	Mailing List Third Party Advisory
6	http://seclists.org/fulldisclosure/2019/Apr/38	Mailing List Third Party Advisory
7	http://www.openwall.com/lists/oss-security/2019/04/30/4	Mailing List Third Party Advisory
8	http://www.openwall.com/lists/oss-security/2019/04/30/4	Mailing List Third Party Advisory
9	https://access.redhat.com/errata/RHSA-2019:1144
10	https://access.redhat.com/errata/RHSA-2019:1144
11	https://bugzilla.mozilla.org/show_bug.cgi?id=1507218	Issue Tracking Permissions Required Vendor Advisory
12	https://bugzilla.mozilla.org/show_bug.cgi?id=1507218	Issue Tracking Permissions Required Vendor Advisory
13	https://github.com/RUB-NDS/Johnny-You-Are-Fired
14	https://github.com/RUB-NDS/Johnny-You-Are-Fired
15	https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
16	https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
17	https://www.mozilla.org/security/advisories/mfsa2019-06/	Vendor Advisory
18	https://www.mozilla.org/security/advisories/mfsa2019-06/	Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-347	デジタル署名の不適切な検証	https://cwe.mitre.org/data/definitions/347.html

JVN Vulnerability Information

Thunderbird におけるデジタル署名の検証に関する脆弱性

Title	Thunderbird におけるデジタル署名の検証に関する脆弱性
Summary	Thunderbird には、デジタル署名の検証に関する脆弱性が存在します。
Possible impacts	情報を改ざんされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Oct. 19, 2018, midnight
Registration Date	May 28, 2019, 4:37 p.m.
Last Update	May 28, 2019, 4:37 p.m.

Affected System

Mozilla Foundation

Mozilla Thunderbird 60.5.1 未満

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2018-18509	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18509
National Vulnerability Database (NVD)
2	CVE-2018-18509	https://nvd.nist.gov/vuln/detail/CVE-2018-18509

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-347	https://cwe.mitre.org/data/definitions/347.html

ベンダー情報

No	Name	URL
Mozilla Foundation Security Advisory
1	MFSA2019-06	https://www.mozilla.org/security/advisories/mfsa2019-06/

Change Log

No	Changed Details	Date of change
1	[2019年05月28日] 掲載	May 28, 2019, 4:37 p.m.