DSA-3255-1 zeromq3 -- security update

Debian Security Advisory

DSA-3255-1 zeromq3 -- security update

Date Reported:

10 May 2015

Affected Packages:

zeromq3

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 784366.
In Mitre's CVE dictionary: CVE-2014-9721.

More information:

It was discovered that libzmq, a lightweight messaging kernel, is susceptible to a protocol downgrade attack on sockets using the ZMTP v3 protocol. This could allow remote attackers to bypass ZMTP v3 security mechanisms by sending ZMTP v2 or earlier headers.

For the stable distribution (jessie), this problem has been fixed in version 4.0.5+dfsg-2+deb8u1.

For the testing distribution (stretch), this problem has been fixed in version 4.0.5+dfsg-3.

For the unstable distribution (sid), this problem has been fixed in version 4.0.5+dfsg-3.

We recommend that you upgrade your zeromq3 packages.