ZeroMQ libzmq up to 4.0.8/4.1.6/4.2.x/4.3.1 authentication memory corruption

Summaryinfo

A vulnerability labeled as critical has been found in ZeroMQ libzmq up to 4.0.8/4.1.6/4.2.x/4.3.1. Affected is an unknown function of the file encryption/authentication. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2019-13132. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in ZeroMQ libzmq up to 4.0.8/4.1.6/4.2.x/4.3.1 and classified as critical. This vulnerability affects an unknown part of the file encryption/authentication. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In ZeroMQ libzmq before 4.0.9, 4.1.x before 4.1.7, and 4.2.x before 4.3.2, a remote, unauthenticated client connecting to a libzmq application, running with a socket listening with CURVE encryption/authentication enabled, may cause a stack overflow and overwrite the stack with arbitrary data, due to a buffer overflow in the library. Users running public servers with the above configuration are highly encouraged to upgrade as soon as possible, as there are no known mitigations.

The weakness was released 07/10/2019 as not defined mailinglist post (Bugtraq). The advisory is available at seclists.org. This vulnerability was named CVE-2019-13132 since 07/01/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 4.0.9, 4.1.7 or 4.3.2 eliminates this vulnerability.

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Productinfo

Vendor

• ZeroMQ

Name

• libzmq

Version

• 4.0
• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.0.5
• 4.0.6
• 4.0.7
• 4.0.8
• 4.1
• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.1.5
• 4.1.6
• 4.2
• 4.3.0
• 4.3.1

Website

• Product: https://github.com/zeromq/libzmq/

CPE 2.3info

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CPE 2.2info

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