NVD Vulnerability Detail

CVE-2020-15678

Summary	When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. This occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
Publication Date	Oct. 2, 2020, 4:15 a.m.
Registration Date	Jan. 26, 2021, 11:53 a.m.
Last Update	Nov. 21, 2024, 2:05 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:a:mozilla:firefox_esr::::::::				78.3
cpe:2.3:a:mozilla:thunderbird::::::::				78.3
cpe:2.3:a:mozilla:firefox::::::::				81.0

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:o:opensuse:leap:15.2:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html	Broken Link Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html	Broken Link Mailing List Third Party Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html	Broken Link Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html	Broken Link Mailing List Third Party Advisory
5	https://bugzilla.mozilla.org/show_bug.cgi?id=1660211	Issue Tracking Permissions Required Vendor Advisory
6	https://bugzilla.mozilla.org/show_bug.cgi?id=1660211	Issue Tracking Permissions Required Vendor Advisory
7	https://lists.debian.org/debian-lts-announce/2020/10/msg00020.html	Mailing List Third Party Advisory
8	https://lists.debian.org/debian-lts-announce/2020/10/msg00020.html	Mailing List Third Party Advisory
9	https://security.gentoo.org/glsa/202010-02	Third Party Advisory
10	https://security.gentoo.org/glsa/202010-02	Third Party Advisory
11	https://www.debian.org/security/2020/dsa-4770	Third Party Advisory
12	https://www.debian.org/security/2020/dsa-4770	Third Party Advisory
13	https://www.mozilla.org/security/advisories/mfsa2020-42/	Release Notes Vendor Advisory
14	https://www.mozilla.org/security/advisories/mfsa2020-42/	Release Notes Vendor Advisory
15	https://www.mozilla.org/security/advisories/mfsa2020-43/	Release Notes Vendor Advisory
16	https://www.mozilla.org/security/advisories/mfsa2020-43/	Release Notes Vendor Advisory
17	https://www.mozilla.org/security/advisories/mfsa2020-44/	Release Notes Vendor Advisory
18	https://www.mozilla.org/security/advisories/mfsa2020-44/	Release Notes Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-416	解放済みメモリの使用	https://cwe.mitre.org/data/definitions/416.html

JVN Vulnerability Information

Firefox および Thunderbird における解放済みメモリの使用に関する脆弱性

Title	Firefox および Thunderbird における解放済みメモリの使用に関する脆弱性
Summary	Firefox および Thunderbird には、解放済みメモリの使用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. 22, 2020, midnight
Registration Date	April 12, 2021, 4:41 p.m.
Last Update	April 12, 2021, 4:41 p.m.

Affected System

Mozilla Foundation

Mozilla Firefox 81 未満

Mozilla Firefox ESR 78.3 未満

Mozilla Thunderbird 78.3 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-2020-15678	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15678
National Vulnerability Database (NVD)
2	CVE-2020-15678	https://nvd.nist.gov/vuln/detail/CVE-2020-15678

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-416	https://cwe.mitre.org/data/definitions/416.html

ベンダー情報

No	Name	URL
Mozilla Foundation Security Advisory
1	MFSA2020-42	https://www.mozilla.org/en-US/security/advisories/mfsa2020-42/
2	MFSA2020-43	https://www.mozilla.org/en-US/security/advisories/mfsa2020-43/
3	MFSA2020-44	https://www.mozilla.org/en-US/security/advisories/mfsa2020-44/

Change Log

No	Changed Details	Date of change
1	[2021年04月12日] 掲載	April 12, 2021, 4:41 p.m.