NVD Vulnerability Detail

CVE-2021-30849

Summary	Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, watchOS 8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, iTunes 12.12 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.
Publication Date	Oct. 19, 2021, 11:15 p.m.
Registration Date	Oct. 20, 2021, 10 a.m.
Last Update	Nov. 21, 2024, 3:04 p.m.

CVSS3.1 : HIGH
スコア	7.8
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	不要
利用者の関与(UI)	要
影響の想定範囲(S)	変更なし
機密性への影響(C)	高
完全性への影響(I)	高
可用性への影響(A)	高

CVSS2.0 : MEDIUM
Score	6.8
Vector	AV:N/AC:M/Au:N/C:P/I:P/A:P
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	中
攻撃前の認証要否(Au)	不要
機密性への影響(C)	低
完全性への影響(I)	低
可用性への影響(A)	低
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	はい

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:o:apple:ipados::::::::				14.8
cpe:2.3:o:apple:iphone_os::::::::				14.8
cpe:2.3:o:apple:watchos::::::::				8.0
cpe:2.3:o:apple:tvos::::::::				15.0
cpe:2.3:a:apple:itunes::::::windows::*				12.12
cpe:2.3:a:apple:safari::::::::				15.0
cpe:2.3:o:apple:macos::::::::				12.0.1

Related information, measures and tools

No	URL	タグ
1	http://seclists.org/fulldisclosure/2021/Oct/60	Mailing List Third Party Advisory
2	http://seclists.org/fulldisclosure/2021/Oct/60	Mailing List Third Party Advisory
3	http://seclists.org/fulldisclosure/2021/Oct/61	Mailing List Third Party Advisory
4	http://seclists.org/fulldisclosure/2021/Oct/61	Mailing List Third Party Advisory
5	http://seclists.org/fulldisclosure/2021/Oct/62	Mailing List Third Party Advisory
6	http://seclists.org/fulldisclosure/2021/Oct/62	Mailing List Third Party Advisory
7	http://seclists.org/fulldisclosure/2021/Oct/63	Mailing List Third Party Advisory
8	http://seclists.org/fulldisclosure/2021/Oct/63	Mailing List Third Party Advisory
9	http://www.openwall.com/lists/oss-security/2021/10/26/9	Mailing List
10	http://www.openwall.com/lists/oss-security/2021/10/26/9	Mailing List
11	http://www.openwall.com/lists/oss-security/2021/10/27/1	Mailing List
12	http://www.openwall.com/lists/oss-security/2021/10/27/1	Mailing List
13	http://www.openwall.com/lists/oss-security/2021/10/27/2	Mailing List
14	http://www.openwall.com/lists/oss-security/2021/10/27/2	Mailing List
15	http://www.openwall.com/lists/oss-security/2021/10/27/4	Mailing List
16	http://www.openwall.com/lists/oss-security/2021/10/27/4	Mailing List
17	https://support.apple.com/en-us/HT212807	Vendor Advisory
18	https://support.apple.com/en-us/HT212807	Vendor Advisory
19	https://support.apple.com/en-us/HT212814	Vendor Advisory
20	https://support.apple.com/en-us/HT212814	Vendor Advisory
21	https://support.apple.com/en-us/HT212815	Vendor Advisory
22	https://support.apple.com/en-us/HT212815	Vendor Advisory
23	https://support.apple.com/en-us/HT212816	Vendor Advisory
24	https://support.apple.com/en-us/HT212816	Vendor Advisory
25	https://support.apple.com/en-us/HT212817	Vendor Advisory
26	https://support.apple.com/en-us/HT212817	Vendor Advisory
27	https://support.apple.com/en-us/HT212819	Vendor Advisory
28	https://support.apple.com/en-us/HT212819	Vendor Advisory
29	https://support.apple.com/kb/HT212869	Vendor Advisory
30	https://support.apple.com/kb/HT212869	Vendor Advisory
31	https://support.apple.com/kb/HT212953	Vendor Advisory
32	https://support.apple.com/kb/HT212953	Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-787	境界外書き込み	https://cwe.mitre.org/data/definitions/787.html

JVN Vulnerability Information

複数の Apple 製品における境界外書き込みに関する脆弱性

Title	複数の Apple 製品における境界外書き込みに関する脆弱性
Summary	複数の Apple 製品には、境界外書き込みに関する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	Sept. 13, 2021, midnight
Registration Date	Sept. 30, 2022, 5:05 p.m.
Last Update	Sept. 30, 2022, 5:05 p.m.

Affected System

アップル

iOS 14.8 未満

iPadOS 14.8 未満

iTunes 12.12 未満

macOS 12.0.1 未満

Safari 15.0 未満

tvOS 15.0 未満

watchOS 8.0 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-2021-30849	https://www.cve.org/CVERecord?id=CVE-2021-30849
National Vulnerability Database (NVD)
2	CVE-2021-30849	https://nvd.nist.gov/vuln/detail/CVE-2021-30849

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-787	https://cwe.mitre.org/data/definitions/787.html

ベンダー情報

No	Name	URL
Apple Security Updates
1	HT212807	https://support.apple.com/en-us/HT212807
2	HT212814	https://support.apple.com/en-us/HT212814
3	HT212815	https://support.apple.com/en-us/HT212815
4	HT212816	https://support.apple.com/en-us/HT212816
5	HT212817	https://support.apple.com/en-us/HT212817
6	HT212819	https://support.apple.com/en-us/HT212819
7	HT212869	https://support.apple.com/en-us/HT212869
8	HT212953	https://support.apple.com/en-us/HT212953
Apple セキュリティアップデート
9	HT212807	https://support.apple.com/ja-jp/HT212807
10	HT212814	https://support.apple.com/ja-jp/HT212814
11	HT212815	https://support.apple.com/ja-jp/HT212815
12	HT212816	https://support.apple.com/ja-jp/HT212816
13	HT212817	https://support.apple.com/ja-jp/HT212817
14	HT212819	https://support.apple.com/ja-jp/HT212819
15	HT212869	https://support.apple.com/ja-jp/HT212869
16	HT212953	https://support.apple.com/ja-jp/HT212953

その他

No	Name	URL
関連文書
1	APPLE-SA-2021-10-26-10 Additional information for APPLE-SA-2021-09-20-2 watchOS 8	http://seclists.org/fulldisclosure/2021/Oct/62
2	APPLE-SA-2021-10-26-11 Additional information for APPLE-SA-2021-09-20-3 tvOS 15	http://seclists.org/fulldisclosure/2021/Oct/63
3	APPLE-SA-2021-10-26-8 Additional information for APPLE-SA-2021-09-20-5 Safari 15	http://seclists.org/fulldisclosure/2021/Oct/60
4	APPLE-SA-2021-10-26-9 Additional information for APPLE-SA-2021-09-20-1 iOS 15 and iPadOS 15	http://seclists.org/fulldisclosure/2021/Oct/61

Change Log

No	Changed Details	Date of change
1	[2022年09月30日] 掲載	Sept. 30, 2022, 5:05 p.m.