NVD Vulnerability Detail

CVE-2021-23968

Summary	If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
Publication Date	Feb. 26, 2021, 11:15 a.m.
Registration Date	Feb. 26, 2021, 4:02 p.m.
Last Update	Nov. 21, 2024, 2:52 p.m.

Affected software configurations

Related information, measures and tools

No	URL	タグ
1	https://bugzilla.mozilla.org/show_bug.cgi?id=1687342	Issue Tracking Permissions Required Vendor Advisory
2	https://bugzilla.mozilla.org/show_bug.cgi?id=1687342	Issue Tracking Permissions Required Vendor Advisory
3	https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html	Mailing List Third Party Advisory
4	https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html	Mailing List Third Party Advisory
5	https://security.gentoo.org/glsa/202104-09	Third Party Advisory
6	https://security.gentoo.org/glsa/202104-09	Third Party Advisory
7	https://security.gentoo.org/glsa/202104-10	Third Party Advisory
8	https://security.gentoo.org/glsa/202104-10	Third Party Advisory
9	https://www.debian.org/security/2021/dsa-4866	Third Party Advisory
10	https://www.debian.org/security/2021/dsa-4866	Third Party Advisory
11	https://www.mozilla.org/security/advisories/mfsa2021-07/	Release Notes Vendor Advisory
12	https://www.mozilla.org/security/advisories/mfsa2021-07/	Release Notes Vendor Advisory
13	https://www.mozilla.org/security/advisories/mfsa2021-08/	Release Notes Vendor Advisory
14	https://www.mozilla.org/security/advisories/mfsa2021-08/	Release Notes Vendor Advisory
15	https://www.mozilla.org/security/advisories/mfsa2021-09/	Release Notes Vendor Advisory
16	https://www.mozilla.org/security/advisories/mfsa2021-09/	Release Notes Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-209	エラーメッセージによる情報漏えい	https://cwe.mitre.org/data/definitions/209.html

JVN Vulnerability Information

Mozilla Firefox および Thunderbird におけるエラーメッセージによる情報漏えいに関する脆弱性

Title	Mozilla Firefox および Thunderbird におけるエラーメッセージによる情報漏えいに関する脆弱性
Summary	Mozilla Firefox および Thunderbird には、エラーメッセージによる情報漏えいに関する脆弱性が存在します。
Possible impacts	情報を取得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	Feb. 23, 2021, midnight
Registration Date	Nov. 16, 2021, 2:59 p.m.
Last Update	Nov. 16, 2021, 2:59 p.m.

Affected System

Mozilla Foundation

Mozilla Firefox 86 未満

Mozilla Firefox ESR 78.8 未満

Mozilla Thunderbird 78.8 未満

Debian

Debian GNU/Linux

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-2021-23968	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23968
National Vulnerability Database (NVD)
2	CVE-2021-23968	https://nvd.nist.gov/vuln/detail/CVE-2021-23968

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-209	http://cwe.mitre.org/data/definitions/209.html

ベンダー情報

No	Name	URL
Debian
1	[SECURITY] [DLA 2578-1] thunderbird security update	https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html
Debian Security Advisory
2	DSA-4866-1	https://www.debian.org/security/2021/dsa-4866
Mozilla Foundation Security Advisory
3	MFSA2021-07	https://www.mozilla.org/security/advisories/mfsa2021-07/
4	MFSA2021-08	https://www.mozilla.org/security/advisories/mfsa2021-08/
5	MFSA2021-09	https://www.mozilla.org/security/advisories/mfsa2021-09/

Change Log

No	Changed Details	Date of change
1	[2021年11月16日] 掲載	Nov. 16, 2021, 2:59 p.m.