| Name | CVE-2009-3639 |
| Description | The mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408. |
| 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-1925-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| proftpd-dfsg (PTS) | jessie, jessie (lts) | 1.3.5e+r1.3.5-2+deb8u8 | fixed |
| stretch (security) | 1.3.5e+r1.3.5b-4+deb9u2 | fixed | |
| stretch (lts), stretch | 1.3.5e+r1.3.5b-4+deb9u3 | fixed | |
| buster | 1.3.6-4+deb10u6 | fixed | |
| buster (security), buster (lts) | 1.3.6-4+deb10u4 | fixed | |
| bullseye | 1.3.7a+dfsg-12+deb11u2 | fixed | |
| bookworm | 1.3.8+dfsg-4+deb12u3 | fixed | |
| sid | 1.3.8.b+dfsg-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| proftpd-dfsg | source | etch | 1.3.0-19etch3 | DSA-1925-1 | ||
| proftpd-dfsg | source | lenny | 1.3.1-17lenny4 | DSA-1925-1 | ||
| proftpd-dfsg | source | (unstable) | 1.3.2a-2 | low |
http://bugs.proftpd.org/show_bug.cgi?id=3275