NVD Vulnerability Detail

CVE-2020-15656

Summary	JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
Publication Date	Aug. 11, 2020, 3:15 a.m.
Registration Date	Jan. 26, 2021, 11:53 a.m.
Last Update	Nov. 21, 2024, 2:05 p.m.

Affected software configurations

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

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html	Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html	Third Party Advisory
3	https://bugzilla.mozilla.org/show_bug.cgi?id=1647293	Issue Tracking Permissions Required Vendor Advisory
4	https://bugzilla.mozilla.org/show_bug.cgi?id=1647293	Issue Tracking Permissions Required Vendor Advisory
5	https://usn.ubuntu.com/4443-1/	Third Party Advisory
6	https://usn.ubuntu.com/4443-1/	Third Party Advisory
7	https://www.mozilla.org/security/advisories/mfsa2020-30/	Vendor Advisory
8	https://www.mozilla.org/security/advisories/mfsa2020-30/	Vendor Advisory
9	https://www.mozilla.org/security/advisories/mfsa2020-32/	Vendor Advisory
10	https://www.mozilla.org/security/advisories/mfsa2020-32/	Vendor Advisory
11	https://www.mozilla.org/security/advisories/mfsa2020-33/	Vendor Advisory
12	https://www.mozilla.org/security/advisories/mfsa2020-33/	Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-843	型の取り違え	https://cwe.mitre.org/data/definitions/843.html

JVN Vulnerability Information

Firefox および Thunderbird における型の取り違えに関する脆弱性

Title	Firefox および Thunderbird における型の取り違えに関する脆弱性
Summary	Firefox および Thunderbird には、型の取り違え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	July 28, 2020, midnight
Registration Date	Nov. 4, 2020, 3:57 p.m.
Last Update	Nov. 4, 2020, 3:57 p.m.

Affected System

Mozilla Foundation

Mozilla Firefox 79 未満

Mozilla Firefox ESR 78.1 未満

Mozilla Thunderbird 78.1 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-2020-15656	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15656
National Vulnerability Database (NVD)
2	CVE-2020-15656	https://nvd.nist.gov/vuln/detail/CVE-2020-15656

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-843	https://cwe.mitre.org/data/definitions/843.html

ベンダー情報

No	Name	URL
Mozilla Foundation Security Advisory
1	MFSA2020-30	https://www.mozilla.org/en-US/security/advisories/mfsa2020-30/
2	MFSA2020-32	https://www.mozilla.org/en-US/security/advisories/mfsa2020-32/
3	MFSA2020-33	https://www.mozilla.org/en-US/security/advisories/mfsa2020-33/

Change Log

No	Changed Details	Date of change
1	[2020年11月04日] 掲載	Nov. 4, 2020, 3:57 p.m.