Description
dbclient in Dropbear SSH client before 0.49 does not sufficiently warn the user when it detects a hostkey mismatch, which might allow remote attackers to conduct man-in-the-middle attacks.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | dropbear | 0.49-1 | — |
| Debian 13 | dropbear | 0.49-1 | — |
| Debian 12 | dropbear | 0.49-1 | — |
References
- 22761 vdb-entry
- 24345 third-party-advisory
- 32088 vdb-entry
- dropbear-hostkey-weak-security(32762) vdb-entry
- ADV-2007-0785 vdb-entry
- http://matt.ucc.asn.au/dropbear/CHANGES
- 33814 vdb-entry