NVD Vulnerability Detail

CVE-2021-29964

Summary	A locally-installed hostile program could send `WM_COPYDATA` messages that Firefox would process incorrectly, leading to an out-of-bounds read. This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Thunderbird < 78.11, Firefox < 89, and Firefox ESR < 78.11.
Publication Date	June 24, 2021, 11:15 p.m.
Registration Date	June 25, 2021, 10 a.m.
Last Update	Nov. 21, 2024, 3:02 p.m.

Affected software configurations

Related information, measures and tools

No	URL	タグ
1	https://bugzilla.mozilla.org/show_bug.cgi?id=1706501	Permissions Required Vendor Advisory
2	https://bugzilla.mozilla.org/show_bug.cgi?id=1706501	Permissions Required Vendor Advisory
3	https://www.mozilla.org/security/advisories/mfsa2021-23/	Release Notes Vendor Advisory
4	https://www.mozilla.org/security/advisories/mfsa2021-23/	Release Notes Vendor Advisory
5	https://www.mozilla.org/security/advisories/mfsa2021-24/	Release Notes Vendor Advisory
6	https://www.mozilla.org/security/advisories/mfsa2021-24/	Release Notes Vendor Advisory
7	https://www.mozilla.org/security/advisories/mfsa2021-26/	Release Notes Vendor Advisory
8	https://www.mozilla.org/security/advisories/mfsa2021-26/	Release Notes Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-125	境界外読み取り	https://cwe.mitre.org/data/definitions/125.html

JVN Vulnerability Information

Windows 上で稼働する Firefox および Thunderbird における境界外読み取りに関する脆弱性

Title	Windows 上で稼働する Firefox および Thunderbird における境界外読み取りに関する脆弱性
Summary	Windows 上で稼働する Firefox および Thunderbird には、境界外読み取りに関する脆弱性が存在します。
Possible impacts	情報を取得される、およびサービス運用妨害 (DoS) 状態に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	June 1, 2021, midnight
Registration Date	March 18, 2022, 5:57 p.m.
Last Update	March 18, 2022, 5:57 p.m.

Affected System

Mozilla Foundation

Mozilla Firefox 89 未満

Mozilla Firefox ESR 78.11 未満

Mozilla Thunderbird 78.11 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-2021-29964	https://www.cve.org/CVERecord?id=CVE-2021-29964
National Vulnerability Database (NVD)
2	CVE-2021-29964	https://nvd.nist.gov/vuln/detail/CVE-2021-29964

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-125	https://cwe.mitre.org/data/definitions/125.html

ベンダー情報

No	Name	URL
Mozilla Bugzilla
1	Bug 1706501	https://bugzilla.mozilla.org/show_bug.cgi?id=1706501
Mozilla Foundation Security Advisory
2	MFSA2021-23	https://www.mozilla.org/en-US/security/advisories/mfsa2021-23/
3	MFSA2021-24	https://www.mozilla.org/en-US/security/advisories/mfsa2021-24/
4	MFSA2021-26	https://www.mozilla.org/en-US/security/advisories/mfsa2021-26/

Change Log

No	Changed Details	Date of change
1	[2022年03月18日] 掲載	March 18, 2022, 5:57 p.m.