NVD Vulnerability Detail

CVE-2020-15683

Summary	Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 Firefox ESR < 78.4, Firefox < 82, and Thunderbird < 78.4.
Publication Date	Oct. 23, 2020, 6:15 a.m.
Registration Date	Jan. 26, 2021, 11:53 a.m.
Last Update	Nov. 21, 2024, 2:06 p.m.

CVSS3.1 : CRITICAL
スコア	9.8
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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)	不要
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 : HIGH
Score	7.5
Vector	AV:N/AC:L/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)	低
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	いいえ

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:mozilla:firefox_esr::::::::				78.4
cpe:2.3:a:mozilla:thunderbird::::::::				78.4
cpe:2.3:a:mozilla:firefox::::::::				82.0

Configuration2	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:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:o:opensuse:leap:15.2:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00057.html	Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00057.html	Mailing List Third Party Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00062.html	Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00062.html	Mailing List Third Party Advisory
5	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html	Mailing List Third Party Advisory
6	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html	Mailing List Third Party Advisory
7	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html	Mailing List Third Party Advisory
8	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html	Mailing List Third Party Advisory
9	https://bugzilla.mozilla.org/buglist.cgi?bug_id=1576843%2C1656987%2C1660954%2C1662760%2C1663439%2C1666140	Broken Link Issue Tracking Vendor Advisory
10	https://bugzilla.mozilla.org/buglist.cgi?bug_id=1576843%2C1656987%2C1660954%2C1662760%2C1663439%2C1666140	Broken Link Issue Tracking Vendor Advisory
11	https://lists.debian.org/debian-lts-announce/2020/10/msg00027.html	Mailing List Third Party Advisory
12	https://lists.debian.org/debian-lts-announce/2020/10/msg00027.html	Mailing List Third Party Advisory
13	https://security.gentoo.org/glsa/202010-08	Third Party Advisory
14	https://security.gentoo.org/glsa/202010-08	Third Party Advisory
15	https://www.debian.org/security/2020/dsa-4780	Third Party Advisory
16	https://www.debian.org/security/2020/dsa-4780	Third Party Advisory
17	https://www.mozilla.org/security/advisories/mfsa2020-45/	Release Notes Vendor Advisory
18	https://www.mozilla.org/security/advisories/mfsa2020-45/	Release Notes Vendor Advisory
19	https://www.mozilla.org/security/advisories/mfsa2020-46/	Release Notes Vendor Advisory
20	https://www.mozilla.org/security/advisories/mfsa2020-46/	Release Notes Vendor Advisory
21	https://www.mozilla.org/security/advisories/mfsa2020-47/	Release Notes Vendor Advisory
22	https://www.mozilla.org/security/advisories/mfsa2020-47/	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
2	CWE-787	境界外書き込み	https://cwe.mitre.org/data/definitions/787.html

JVN Vulnerability Information

Firefox および Thunderbird における脆弱性

Title	Firefox および Thunderbird における脆弱性
Summary	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. 20, 2020, midnight
Registration Date	May 14, 2021, 6:23 p.m.
Last Update	May 14, 2021, 6:23 p.m.

Affected System

Mozilla Foundation

Mozilla Firefox 82 未満

Mozilla Firefox ESR 78.4 未満

Mozilla Thunderbird 78.4 未満

Debian

Debian GNU/Linux

openSUSE project

openSUSE Leap

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-2020-15683	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15683
National Vulnerability Database (NVD)
2	CVE-2020-15683	https://nvd.nist.gov/vuln/detail/CVE-2020-15683

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 Security Advisory
1	DSA-4780-1	https://www.debian.org/security/2020/dsa-4780
debian-security-announce
2	[SECURITY] [DLA 2416-1] thunderbird security update	https://lists.debian.org/debian-lts-announce/2020/10/msg00027.html
Mozilla Foundation Security Advisory
3	MFSA2020-45	https://www.mozilla.org/security/advisories/mfsa2020-45/
4	MFSA2020-46	https://www.mozilla.org/security/advisories/mfsa2020-46/
5	MFSA2020-47	https://www.mozilla.org/security/advisories/mfsa2020-47/
opensuse-security-announce
6	openSUSE-SU-2020:1732-1	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00057.html
7	openSUSE-SU-2020:1748-1	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00062.html
8	openSUSE-SU-2020:1780-1	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html
9	openSUSE-SU-2020:1785-1	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html

Change Log

No	Changed Details	Date of change
1	[2021年05月14日] 掲載	May 14, 2021, 6:23 p.m.