[manjaro-security] [ASA-202009-16] zeromq: denial of service

Morten Linderud foxboron at archlinux.org
Tue Oct 6 22:11:14 CEST 2020


Arch Linux Security Advisory ASA-202009-16
==========================================

Severity: High
Date    : 2020-09-26
CVE-ID  : CVE-2020-15166
Package : zeromq
Type    : denial of service
Remote  : Yes
Link    : https://security.archlinux.org/AVG-1219

Summary
=======

The package zeromq before version 4.3.3-1 is vulnerable to denial of
service.

Resolution
==========

Upgrade to 4.3.3-1.

# pacman -Syu "zeromq>=4.3.3-1"

The problem has been fixed upstream in version 4.3.3.

Workaround
==========

None.

Description
===========

A denial of service has been found in libzmq before 4.3.3, allowing
unauthenticated clients to prevent legitimate clients from exchange any
message with a CURVE/ZAP-protected server.

Impact
======

A remote attacker might be able to cause a denial of service through a
malicious connection.

References
==========

https://github.com/zeromq/libzmq/security/advisories/GHSA-25wp-cf8g-938m
https://github.com/zeromq/libzmq/pull/3913/commits/e7f0090b161ce6344f6bd35009816a925c070b09
https://oss-fuzz.com/testcase-detail/5707174518194176
https://security.archlinux.org/CVE-2020-15166
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