NVD Vulnerability Detail

CVE-2020-15166

Summary	In ZeroMQ before version 4.3.3, there is a denial-of-service vulnerability. Users with TCP transport public endpoints, even with CURVE/ZAP enabled, are impacted. If a raw TCP socket is opened and connected to an endpoint that is fully configured with CURVE/ZAP, legitimate clients will not be able to exchange any message. Handshakes complete successfully, and messages are delivered to the library, but the server application never receives them. This is patched in version 4.3.3.
Publication Date	Sept. 12, 2020, 1:15 a.m.
Registration Date	Jan. 26, 2021, 11:53 a.m.
Last Update	Nov. 21, 2024, 2:04 p.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:zeromq:libzmq::::::::					4.3.3

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

Related information, measures and tools

No	URL	タグ
1	https://github.com/zeromq/libzmq/pull/3913	Patch Third Party Advisory
2	https://github.com/zeromq/libzmq/pull/3913	Patch Third Party Advisory
3	https://github.com/zeromq/libzmq/pull/3973	Patch Third Party Advisory
4	https://github.com/zeromq/libzmq/pull/3973	Patch Third Party Advisory
5	https://github.com/zeromq/libzmq/security/advisories/GHSA-25wp-cf8g-938m	Patch Third Party Advisory
6	https://github.com/zeromq/libzmq/security/advisories/GHSA-25wp-cf8g-938m	Patch Third Party Advisory
7	https://lists.debian.org/debian-lts-announce/2020/11/msg00017.html	Mailing List Third Party Advisory
8	https://lists.debian.org/debian-lts-announce/2020/11/msg00017.html	Mailing List Third Party Advisory
9	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZ5IMNQXDB52JFBXHFLK4AHVORFELNNG/
10	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZ5IMNQXDB52JFBXHFLK4AHVORFELNNG/
11	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YFW2ZELCCPS4VLU4OSJOH5YL6KFKTFYW/
12	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YFW2ZELCCPS4VLU4OSJOH5YL6KFKTFYW/
13	https://security.gentoo.org/glsa/202009-12	Third Party Advisory
14	https://security.gentoo.org/glsa/202009-12	Third Party Advisory

Common Vulnerabilities List

JVN Vulnerability Information

ZeroMQ におけるリソースの枯渇に関する脆弱性

Title	ZeroMQ におけるリソースの枯渇に関する脆弱性
Summary	ZeroMQ には、リソースの枯渇に関する脆弱性が存在します。
Possible impacts	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	May 14, 2020, midnight
Registration Date	March 9, 2021, 5:51 p.m.
Last Update	March 9, 2021, 5:51 p.m.

Affected System

ZeroMQ

libzmq 4.3.3 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-2020-15166	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15166
National Vulnerability Database (NVD)
2	CVE-2020-15166	https://nvd.nist.gov/vuln/detail/CVE-2020-15166

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-400	https://cwe.mitre.org/data/definitions/400.html

ベンダー情報

No	Name	URL
GitHub
1	Denial-of-Service on CURVE/ZAP-protected servers by unauthenticated clients	https://github.com/zeromq/libzmq/security/advisories/GHSA-25wp-cf8g-938m
2	Problem: test_security_zap occasionally segfaults #3973	https://github.com/zeromq/libzmq/pull/3973
3	problem: zeromq connects peer before handshake is complete #3913	https://github.com/zeromq/libzmq/pull/3913

Change Log

No	Changed Details	Date of change
1	[2021年03月09日] 掲載	March 9, 2021, 5:51 p.m.