CVE-2020-15166

2020-09-1100:00:00

ubuntu.com

7.5 High

CVSS3

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

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.011 Low

EPSS

Percentile

84.7%

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchzeromq3< 4.2.5-1ubuntu0.2+esm1UNKNOWN
ubuntu20.04noarchzeromq3< 4.3.2-2ubuntu1.20.04.1~esm1UNKNOWN
ubuntu14.04noarchzeromq3< 4.0.4+dfsg-2ubuntu0.1+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchzeromq3< 4.1.4-7ubuntu0.1+esm1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	zeromq3	< 4.2.5-1ubuntu0.2+esm1	UNKNOWN
ubuntu	20.04	noarch	zeromq3	< 4.3.2-2ubuntu1.20.04.1~esm1	UNKNOWN
ubuntu	14.04	noarch	zeromq3	< 4.0.4+dfsg-2ubuntu0.1+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN
ubuntu	16.04	noarch	zeromq3	< 4.1.4-7ubuntu0.1+esm1	UNKNOWN