NVD Vulnerability Detail

CVE-2020-9983

Summary	An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 14.0. Processing maliciously crafted web content may lead to code execution.
Publication Date	Oct. 17, 2020, 2:15 a.m.
Registration Date	Jan. 26, 2021, 12:03 p.m.
Last Update	Nov. 21, 2024, 2:41 p.m.

CVSS3.1 : HIGH
スコア	8.8
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
攻撃元区分(AV)	ネットワーク
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:iphone_os::::::::				14.0
cpe:2.3:a:apple:safari::::::::				14.0
cpe:2.3:o:apple:ipados::::::::				14.0
cpe:2.3:a:apple:icloud:11.5:::::windows::
cpe:2.3:o:apple:tvos:14.0:::::::*
cpe:2.3:a:apple:itunes:12.10.9:::::windows::
cpe:2.3:o:apple:watchos:7.0:::::::*

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:32:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*

Related information, measures and tools

No	URL	タグ
1	http://seclists.org/fulldisclosure/2020/Nov/18	Mailing List Third Party Advisory
2	http://seclists.org/fulldisclosure/2020/Nov/18	Mailing List Third Party Advisory
3	http://seclists.org/fulldisclosure/2020/Nov/19	Mailing List Third Party Advisory
4	http://seclists.org/fulldisclosure/2020/Nov/19	Mailing List Third Party Advisory
5	http://seclists.org/fulldisclosure/2020/Nov/20	Mailing List Third Party Advisory
6	http://seclists.org/fulldisclosure/2020/Nov/20	Mailing List Third Party Advisory
7	http://seclists.org/fulldisclosure/2020/Nov/22	Mailing List Third Party Advisory
8	http://seclists.org/fulldisclosure/2020/Nov/22	Mailing List Third Party Advisory
9	http://www.openwall.com/lists/oss-security/2020/11/23/3	Mailing List Third Party Advisory
10	http://www.openwall.com/lists/oss-security/2020/11/23/3	Mailing List Third Party Advisory
11	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY2OBQZFMEFZOSWXPXHPEHOJXXILEEX2/
12	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY2OBQZFMEFZOSWXPXHPEHOJXXILEEX2/
13	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDGBNKYT7NMW7CJ26YFUPUHPJVYGV7IQ/
14	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDGBNKYT7NMW7CJ26YFUPUHPJVYGV7IQ/
15	https://security.gentoo.org/glsa/202012-10	Third Party Advisory
16	https://security.gentoo.org/glsa/202012-10	Third Party Advisory
17	https://support.apple.com/HT211845	Release Notes Vendor Advisory
18	https://support.apple.com/HT211845	Release Notes Vendor Advisory
19	https://support.apple.com/kb/HT211843	Vendor Advisory
20	https://support.apple.com/kb/HT211843	Vendor Advisory
21	https://support.apple.com/kb/HT211844	Vendor Advisory
22	https://support.apple.com/kb/HT211844	Vendor Advisory
23	https://support.apple.com/kb/HT211850	Vendor Advisory
24	https://support.apple.com/kb/HT211850	Vendor Advisory
25	https://support.apple.com/kb/HT211935	Vendor Advisory
26	https://support.apple.com/kb/HT211935	Vendor Advisory
27	https://support.apple.com/kb/HT211952	Vendor Advisory
28	https://support.apple.com/kb/HT211952	Vendor Advisory
29	https://www.debian.org/security/2020/dsa-4797	Third Party Advisory
30	https://www.debian.org/security/2020/dsa-4797	Third Party 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

Safari における境界外書き込みの脆弱性

Title	Safari における境界外書き込みの脆弱性
Summary	Safari には、境界チェックに関する処理に不備があるため、境界外書き込みの脆弱性が存在します。
Possible impacts	悪意を持って作成された web コンテンツを処理することで、コードを実行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. 16, 2020, midnight
Registration Date	Nov. 27, 2020, 2:17 p.m.
Last Update	Nov. 27, 2020, 2:17 p.m.

Affected System

アップル

iOS 14.0 未満 (iPhone 6s 以降)

iOS 14.0 未満 (iPod touch 第 7 世代)

iPadOS 14.0 未満 (iPad Air 2 以降)

iPadOS 14.0 未満 (iPad mini 4 以降)

iTunes for Windows 12.10.9 未満 (Windows 7 以降)

Safari 14.0 未満 (macOS Catalina)

Safari 14.0 未満 (macOS Mojave)

tvOS 14.0 未満 (Apple TV 4K)

tvOS 14.0 未満 (Apple TV HD)

watchOS 7.0 未満 (Apple Watch Series 3 以降)

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-2020-9983	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9983
National Vulnerability Database (NVD)
2	CVE-2020-9983	https://nvd.nist.gov/vuln/detail/CVE-2020-9983

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	HT211843	https://support.apple.com/en-us/HT211843
2	HT211844	https://support.apple.com/en-us/HT211844
3	HT211845	https://support.apple.com/en-us/HT211845
4	HT211850	https://support.apple.com/en-us/HT211850
5	HT211952	https://support.apple.com/en-us/HT211952
Apple セキュリティアップデート
6	HT211843	https://support.apple.com/ja-jp/HT211843
7	HT211844	https://support.apple.com/ja-jp/HT211844
8	HT211845	https://support.apple.com/ja-jp/HT211845
9	HT211850	https://support.apple.com/ja-jp/HT211850
10	HT211952	https://support.apple.com/ja-jp/HT211952

その他

No	Name	URL
JVN
1	JVNVU#92546061	http://jvn.jp/vu/JVNVU92546061/index.html

Change Log

No	Changed Details	Date of change
1	[2020年11月27日] 掲載	Nov. 27, 2020, 2:17 p.m.