| Name | CVE-2009-3602 |
| Description | Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses. |
| 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-1963-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| unbound (PTS) | jessie, jessie (lts) | 1.4.22-3+deb8u4 | fixed |
| stretch | 1.6.0-3+deb9u2 | fixed |
| buster (security), buster, buster (lts) | 1.9.0-2+deb10u4 | fixed |
| bullseye | 1.13.1-1+deb11u2 | fixed |
| bullseye (security) | 1.13.1-1+deb11u3 | fixed |
| bookworm (security), bookworm | 1.17.1-2+deb12u2 | fixed |
| sid, trixie | 1.22.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| unbound | source | lenny | 1.0.2-1+lenny1 | | DSA-1963-1 | |
| unbound | source | (unstable) | 1.3.4-1 | low | | |
Notes
http://unbound.net/pipermail/unbound-users/2009-October/000852.html