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Test ID:1.3.6.1.4.1.25623.1.0.704761
Category:Debian Local Security Checks
Title:Debian: Security Advisory (DSA-4761-1)
Summary:The remote host is missing an update for the Debian 'zeromq3' package(s) announced via the DSA-4761-1 advisory.
Description:Summary:
The remote host is missing an update for the Debian 'zeromq3' package(s) announced via the DSA-4761-1 advisory.

Vulnerability Insight:
It was discovered that ZeroMQ, a lightweight messaging kernel library does not properly handle connecting peers before a handshake is completed. A remote, unauthenticated client connecting to an application using the libzmq library, running with a socket listening with CURVE encryption/authentication enabled can take advantage of this flaw to cause a denial of service affecting authenticated and encrypted clients.

For the stable distribution (buster), this problem has been fixed in version 4.3.1-4+deb10u2.

We recommend that you upgrade your zeromq3 packages.

For the detailed security status of zeromq3 please refer to its security tracker page at: [link moved to references]

Affected Software/OS:
'zeromq3' package(s) on Debian 10.

Solution:
Please install the updated package(s).

CVSS Score:
5.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-15166
https://github.com/zeromq/libzmq/security/advisories/GHSA-25wp-cf8g-938m
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BZ5IMNQXDB52JFBXHFLK4AHVORFELNNG/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YFW2ZELCCPS4VLU4OSJOH5YL6KFKTFYW/
https://security.gentoo.org/glsa/202009-12
https://github.com/zeromq/libzmq/pull/3913
https://github.com/zeromq/libzmq/pull/3973
https://lists.debian.org/debian-lts-announce/2020/11/msg00017.html
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