VULNERABILITY

FreeBSD: VID-21EC4428-BDAA-11EB-A04E-641C67A117D8 (CVE-2020-15166): libzmq4 -- Denial of Service

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FreeBSD: VID-21EC4428-BDAA-11EB-A04E-641C67A117D8 (CVE-2020-15166): libzmq4 -- Denial of Service

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
09/07/2020
Created
11/08/2022
Added
11/04/2022
Modified
11/04/2022

Description

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.

Solution(s)

  • freebsd-upgrade-package-libzmq4

References

  • CVE-2020-15166

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