NVD Vulnerability Detail

CVE-2021-38492

Summary	When delegating navigations to the operating system, Firefox would accept the `mk` scheme which might allow attackers to launch pages and execute scripts in Internet Explorer in unprivileged mode. This bug only affects Firefox for Windows. Other operating systems are unaffected.. This vulnerability affects Firefox < 92, Thunderbird < 91.1, Thunderbird < 78.14, Firefox ESR < 78.14, and Firefox ESR < 91.1.
Publication Date	Nov. 3, 2021, 10:15 a.m.
Registration Date	Nov. 3, 2021, 4 p.m.
Last Update	Nov. 21, 2024, 3:17 p.m.

Affected software configurations

Related information, measures and tools

No	URL	タグ
1	https://bugzilla.mozilla.org/show_bug.cgi?id=1721107	Exploit Issue Tracking Vendor Advisory
2	https://bugzilla.mozilla.org/show_bug.cgi?id=1721107	Exploit Issue Tracking Vendor Advisory
3	https://security.gentoo.org/glsa/202208-14	Third Party Advisory
4	https://security.gentoo.org/glsa/202208-14	Third Party Advisory
5	https://www.mozilla.org/security/advisories/mfsa2021-38/	Vendor Advisory
6	https://www.mozilla.org/security/advisories/mfsa2021-38/	Vendor Advisory
7	https://www.mozilla.org/security/advisories/mfsa2021-39/	Vendor Advisory
8	https://www.mozilla.org/security/advisories/mfsa2021-39/	Vendor Advisory
9	https://www.mozilla.org/security/advisories/mfsa2021-40/	Vendor Advisory
10	https://www.mozilla.org/security/advisories/mfsa2021-40/	Vendor Advisory
11	https://www.mozilla.org/security/advisories/mfsa2021-41/	Vendor Advisory
12	https://www.mozilla.org/security/advisories/mfsa2021-41/	Vendor Advisory
13	https://www.mozilla.org/security/advisories/mfsa2021-42/	Vendor Advisory
14	https://www.mozilla.org/security/advisories/mfsa2021-42/	Vendor Advisory

Common Vulnerabilities List

JVN Vulnerability Information

Mozilla Firefox および Thunderbird における脆弱性

Title	Mozilla Firefox および Thunderbird における脆弱性
Summary	Mozilla Firefox および Thunderbird には、不特定の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	Sept. 7, 2021, midnight
Registration Date	Oct. 18, 2022, 4:22 p.m.
Last Update	Oct. 18, 2022, 4:22 p.m.

Affected System

Mozilla Foundation

Mozilla Firefox 92 未満

Mozilla Firefox ESR 78.14 未満

Mozilla Firefox ESR 91.1 未満

Mozilla Thunderbird 78.14 未満

Mozilla Thunderbird 91.1 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-2021-38492	https://www.cve.org/CVERecord?id=CVE-2021-38492
National Vulnerability Database (NVD)
2	CVE-2021-38492	https://nvd.nist.gov/vuln/detail/CVE-2021-38492

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-noinfo	https://www.ipa.go.jp/security/vuln/CWE.html#CWEnoinfo

ベンダー情報

No	Name	URL
Mozilla Bugzilla
1	Bug 1721107	https://bugzilla.mozilla.org/show_bug.cgi?id=1721107
Mozilla Foundation Security Advisory
2	MFSA2021-38	https://www.mozilla.org/en-US/security/advisories/mfsa2021-38/
3	MFSA2021-39	https://www.mozilla.org/en-US/security/advisories/mfsa2021-39/
4	MFSA2021-40	https://www.mozilla.org/en-US/security/advisories/mfsa2021-40/
5	MFSA2021-41	https://www.mozilla.org/en-US/security/advisories/mfsa2021-41/
6	MFSA2021-42	https://www.mozilla.org/en-US/security/advisories/mfsa2021-42/

Change Log

No	Changed Details	Date of change
1	[2022年10月18日] 掲載	Oct. 18, 2022, 4:21 p.m.