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GitHub_MCVE-2020-15166

HistorySep 11, 2020 - 4:15 p.m.

CVE-2020-15166

2020-09-1116:15:12

CWE-400

GitHub_M

web.nvd.nist.gov

170

cve-2020-15166

zeromq

denial-of-service

vulnerability

tcp transport

curve/zap

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.2

Confidence

High

EPSS

0.015

Percentile

86.9%

JSON

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.

Affected configurations

Nvd

Vulners

Node

zeromqlibzmqRange<4.3.3

Node

fedoraprojectfedoraMatch32

fedoraprojectfedoraMatch33

Node

debiandebian_linuxMatch9.0

VendorProductVersionCPE
zeromqlibzmq*cpe:2.3:a:zeromq:libzmq:*:*:*:*:*:*:*:*
fedoraprojectfedora32cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
zeromq	libzmq	*	cpe:2.3:a:zeromq:libzmq::::::::
fedoraproject	fedora	32	cpe:2.3:o:fedoraproject:fedora:32:::::::*
fedoraproject	fedora	33	cpe:2.3:o:fedoraproject:fedora:33:::::::*
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*

CNA Affected

[
  {
    "product": "libzmq",
    "vendor": "zeromq",
    "versions": [
      {
        "status": "affected",
        "version": "< 4.3.3"
      }
    ]
  }
]