| Name | CVE-2007-2243 |
| Description | OpenSSH 4.6 and earlier, when ChallengeResponseAuthentication is enabled, allows remote attackers to determine the existence of user accounts by attempting to authenticate via S/KEY, which displays a different response if the user account exists, a similar issue to CVE-2001-1483. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 436571 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| openssh (PTS) | bullseye (security), bullseye | 1:8.4p1-5+deb11u3 | vulnerable |
| bookworm, bookworm (security) | 1:9.2p1-2+deb12u3 | vulnerable | |
| sid, trixie | 1:9.9p1-3 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| openssh | source | (unstable) | (unfixed) | unimportant | 436571 |
[etch] - openssh <no-dsa> (Minor issue)
[sarge] - openssh <no-dsa> (Minor issue)