NVD Vulnerability Detail

CVE-2021-38500

Summary	Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
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/buglist.cgi?bug_id=1725854%2C1728321	Broken Link Issue Tracking
2	https://bugzilla.mozilla.org/buglist.cgi?bug_id=1725854%2C1728321	Broken Link Issue Tracking
3	https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html	Mailing List Third Party Advisory
4	https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html	Mailing List Third Party Advisory
5	https://www.debian.org/security/2022/dsa-5034	Issue Tracking Third Party Advisory
6	https://www.debian.org/security/2022/dsa-5034	Issue Tracking Third Party Advisory
7	https://www.mozilla.org/security/advisories/mfsa2021-43/	Vendor Advisory
8	https://www.mozilla.org/security/advisories/mfsa2021-43/	Vendor Advisory
9	https://www.mozilla.org/security/advisories/mfsa2021-44/	Vendor Advisory
10	https://www.mozilla.org/security/advisories/mfsa2021-44/	Vendor Advisory
11	https://www.mozilla.org/security/advisories/mfsa2021-45/	Vendor Advisory
12	https://www.mozilla.org/security/advisories/mfsa2021-45/	Vendor Advisory
13	https://www.mozilla.org/security/advisories/mfsa2021-46/	Vendor Advisory
14	https://www.mozilla.org/security/advisories/mfsa2021-46/	Vendor Advisory
15	https://www.mozilla.org/security/advisories/mfsa2021-47/	Vendor Advisory
16	https://www.mozilla.org/security/advisories/mfsa2021-47/	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	情報を取得される、情報を改ざんされる、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	Oct. 5, 2021, midnight
Registration Date	April 14, 2022, 2 p.m.
Last Update	April 14, 2022, 2 p.m.

Affected System

Mozilla Foundation

Mozilla Firefox 93 未満

Mozilla Firefox ESR 78.15 未満

Mozilla Firefox ESR 91.2 未満

Mozilla Thunderbird 78.15 未満

Mozilla Thunderbird 91.2 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-2021-38500	https://www.cve.org/CVERecord?id=CVE-2021-38500
National Vulnerability Database (NVD)
2	CVE-2021-38500	https://nvd.nist.gov/vuln/detail/CVE-2021-38500

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
Debian
1	[SECURITY] [DLA 2874-1] thunderbird security update	https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
Debian Security Advisory
2	DSA-5034-1	https://www.debian.org/security/2022/dsa-5034
Mozilla Foundation Security Advisory
3	MFSA2021-43	https://www.mozilla.org/en-US/security/advisories/mfsa2021-43/
4	MFSA2021-44	https://www.mozilla.org/en-US/security/advisories/mfsa2021-44/
5	MFSA2021-45	https://www.mozilla.org/en-US/security/advisories/mfsa2021-45/
6	MFSA2021-47	https://www.mozilla.org/en-US/security/advisories/mfsa2021-47/

Change Log

No	Changed Details	Date of change
1	[2022年04月14日] 掲載	April 14, 2022, 2 p.m.