| Name | CVE-2018-15599 |
| Description | The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1476-1 |
| Debian Bugs | 906890 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| dropbear (PTS) | jessie, jessie (lts) | 2014.65-1+deb8u3 | fixed |
| stretch | 2016.74-5+deb9u1 | fixed | |
| buster (security), buster, buster (lts) | 2018.76-5+deb10u2 | fixed | |
| bullseye | 2020.81-3+deb11u2 | fixed | |
| bookworm | 2022.83-1+deb12u2 | fixed | |
| sid, trixie | 2024.86-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| dropbear | source | wheezy | (unfixed) | end-of-life | ||
| dropbear | source | jessie | 2014.65-1+deb8u3 | DLA-1476-1 | ||
| dropbear | source | stretch | 2016.74-5+deb9u1 | |||
| dropbear | source | (unstable) | 2018.76-4 | 906890 |
http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2018q3/002108.html
https://hg.ucc.asn.au/dropbear/rev/5d2d1021ca00