Debian Long Term Support / LTS Security Information / 2020 / Security Information -- DLA-2443-1 zeromq3

Debian Security Advisory

DLA-2443-1 zeromq3 -- LTS security update

Date Reported:

10 Nov 2020

Affected Packages:

zeromq3

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2020-15166.

More information:

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

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS