CVE-2018-15599
CVE-2018-15599
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.3 · Medium · EPSS 2.7% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
n/a
- Versions
- n/a: Affected
No fix published
dropbear Debian:12
- Affected ranges
- ECOSYSTEM: < 2018.76-4
Update to 2018.76-4
dropbear Debian:13
- Affected ranges
- ECOSYSTEM: < 2018.76-4
Update to 2018.76-4
dropbear Debian:14
- Affected ranges
- ECOSYSTEM: < 2018.76-4
Update to 2018.76-4
dropbear Ubuntu:16.04:LTS
- Versions
- 2014.65-1ubuntu2
- 2015.68-1
- 2015.70-1
- 2015.71-1
- 2016.72-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dropbear Ubuntu:Pro:18.04:LTS
- Versions
- 2017.75-2
- 2017.75-3build1
- 2017.75-3ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://matt.ucc.asn.au/dropbear/CHANGES
- http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2018q3/002109.html
- http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2018q3/002108.html
- https://lists.debian.org/debian-lts-announce/2018/08/msg00026.html
- https://old.reddit.com/r/blackhat/comments/97ywnm/openssh_username_enumeration/e4e05n2/
- https://nvd.nist.gov/vuln/detail/CVE-2018-15599