| Name | CVE-2018-15919 |
| Description | Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.' |
| 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 | 907503 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| openssh (PTS) | buster | 1:7.9p1-10+deb10u2 | vulnerable |
| buster (security) | 1:7.9p1-10+deb10u3 | vulnerable |
| bullseye | 1:8.4p1-5+deb11u2 | vulnerable |
| bookworm | 1:9.2p1-2+deb12u1 | vulnerable |
| trixie | 1:9.4p1-1 | vulnerable |
| sid | 1:9.5p1-2 | 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 | | 907503 |
Notes
https://www.openwall.com/lists/oss-security/2018/08/27/2
Not treated as a security issue by upstream