| Name | CVE-2014-9721 |
| Description | libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade attacks and bypass ZMTP v3 protocol security mechanisms via a ZMTP v2 or earlier header. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3255-1 |
| Debian Bugs | 784366 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| zeromq3 (PTS) | jessie, jessie (lts) | 4.0.5+dfsg-2+deb8u4 | fixed |
| stretch (security), stretch (lts), stretch | 4.2.1-4+deb9u4 | fixed |
| buster, buster (lts) | 4.3.1-4+deb10u3 | fixed |
| buster (security) | 4.3.1-4+deb10u2 | fixed |
| bullseye | 4.3.4-1+deb11u1 | fixed |
| bookworm | 4.3.4-6 | fixed |
| sid, trixie | 4.3.5-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://github.com/zeromq/libzmq/issues/1273
https://github.com/zeromq/zeromq4-x/commit/b6e3e0f601e2c1ec1f3aac880ed6a3fe63043e51
https://www.openwall.com/lists/oss-security/2015/05/07/8