Debian DSA-4761-1 : zeromq3 - security update

Medium Nessus Plugin ID 140302

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VPR Score: 3.6

Synopsis

The remote Debian host is missing a security-related 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.

Solution

Upgrade the zeromq3 packages.

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

See Also

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

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

https://www.debian.org/security/2020/dsa-4761

Plugin Details

Severity: Medium

ID: 140302

File Name: debian_DSA-4761.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/09/08

Updated: 2020/09/21

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:zeromq3, cpe:/o:debian:debian_linux:10.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/09/07

Vulnerability Publication Date: 2020/09/11

Reference Information

CVE: CVE-2020-15166

DSA: 4761