| Name | CVE-2011-1720 |
| Description | The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method. |
| 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-2233-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| postfix (PTS) | jessie, jessie (lts) | 2.11.3-1+deb8u3 | fixed |
| stretch (lts), stretch | 3.1.15-0+deb9u2 | fixed | |
| buster (security), buster, buster (lts) | 3.4.23-0+deb10u2 | fixed | |
| bullseye | 3.5.25-0+deb11u1 | fixed | |
| bookworm | 3.7.11-0+deb12u1 | fixed | |
| sid, trixie | 3.9.0-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| postfix | source | lenny | 2.5.5-1.1+lenny1 | DSA-2233-1 | ||
| postfix | source | squeeze | 2.7.1-1+squeeze1 | DSA-2233-1 | ||
| postfix | source | (unstable) | 2.8.3-1 |
http://www.postfix.org/CVE-2011-1720.html