Debian DLA-2443-1 : zeromq3 security update

high Nessus Plugin ID 142861
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote Debian host is missing a security update.

Description

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 Debian 9 stretch, this problem has been fixed in version 4.2.1-4+deb9u3.

We recommend that you upgrade your zeromq3 packages.

For the detailed security status of zeromq3 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/zeromq3

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected libzmq3-dev, libzmq5, and libzmq5-dbg packages.

See Also

https://lists.debian.org/debian-lts-announce/2020/11/msg00017.html

https://packages.debian.org/source/stretch/zeromq3

https://security-tracker.debian.org/tracker/source-package/zeromq3

Plugin Details

Severity: High

ID: 142861

File Name: debian_DLA-2443.nasl

Version: 1.3

Type: local

Agent: unix

Published: 11/12/2020

Updated: 11/20/2020

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-15166

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libzmq3-dev, p-cpe:/a:debian:debian_linux:libzmq5, p-cpe:/a:debian:debian_linux:libzmq5-dbg, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/10/2020

Vulnerability Publication Date: 9/11/2020

Reference Information

CVE: CVE-2020-15166