NVD Vulnerability Detail

CVE-2020-15658

Summary	The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog. 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: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=1637745	Issue Tracking Permissions Required Vendor Advisory
4	https://bugzilla.mozilla.org/show_bug.cgi?id=1637745	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-754	例外的な状態における不適切なチェック	https://cwe.mitre.org/data/definitions/754.html

JVN Vulnerability Information

Firefox および Thunderbird における例外的な状態のチェックに関する脆弱性

Title	Firefox および Thunderbird における例外的な状態のチェックに関する脆弱性
Summary	Firefox および Thunderbird には、例外的な状態のチェックに関する脆弱性が存在します。
Possible impacts	情報を改ざん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-2020-15658	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15658
National Vulnerability Database (NVD)
2	CVE-2020-15658	https://nvd.nist.gov/vuln/detail/CVE-2020-15658

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-754	https://cwe.mitre.org/data/definitions/754.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.