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FreeBSD : libzmq4 -- V3 protocol handler vulnerable to downgrade attacks (10a6d0aa-0b1c-11e5-bb90-002590263bf5)

medium Nessus Plugin ID 84104

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

Pieter Hintjens reports :

It is easy to bypass the security mechanism in 4.1.0 and 4.0.5 by sending a ZMTP v2 or earlier header. The library accepts such connections without applying its security mechanism.

Solution

Update the affected packages.

See Also

https://github.com/zeromq/libzmq/issues/1273

https://www.openwall.com/lists/oss-security/2015/05/07/8

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200502

http://www.nessus.org/u?1c8bb8c7

Plugin Details

Severity: Medium

ID: 84104

File Name: freebsd_pkg_10a6d0aa0b1c11e5bb90002590263bf5.nasl

Version: 2.5

Type: local

Published: 6/11/2015

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.7

CVSS v2

Risk Factor: Medium

Base Score: 4.3

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:libzmq4, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 6/10/2015

Vulnerability Publication Date: 12/4/2014

Reference Information

CVE: CVE-2014-9721