CVE-2017-3204 | Vulnerability Database | Aqua Security

The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.

Affected Software

Name	Vendor	Start Version	End Version
Crypto	Golang	*	2017-03-17 (including)
Golang-go.crypto	Ubuntu	artful	*
Golang-go.crypto	Ubuntu	esm-infra/xenial	*
Golang-go.crypto	Ubuntu	upstream	*
Golang-go.crypto	Ubuntu	xenial	*
Golang-go.crypto	Ubuntu	yakkety	*
Golang-go.crypto	Ubuntu	zesty	*
Snapd	Ubuntu	artful	*
Snapd	Ubuntu	bionic	*
Snapd	Ubuntu	cosmic	*
Snapd	Ubuntu	devel	*
Snapd	Ubuntu	disco	*
Snapd	Ubuntu	eoan	*
Snapd	Ubuntu	esm-infra/bionic	*
Snapd	Ubuntu	esm-infra/xenial	*
Snapd	Ubuntu	focal	*
Snapd	Ubuntu	groovy	*
Snapd	Ubuntu	hirsute	*
Snapd	Ubuntu	impish	*
Snapd	Ubuntu	jammy	*
Snapd	Ubuntu	kinetic	*
Snapd	Ubuntu	lunar	*
Snapd	Ubuntu	mantic	*
Snapd	Ubuntu	noble	*
Snapd	Ubuntu	oracular	*
Snapd	Ubuntu	trusty	*
Snapd	Ubuntu	xenial	*
Snapd	Ubuntu	yakkety	*
Snapd	Ubuntu	zesty	*
Ubuntu-snappy	Ubuntu	vivid/ubuntu-core	*

References

http://www.securityfocus.com/bid/97481
https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/
https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991
https://github.com/golang/go/issues/19767
https://godoc.org/golang.org/x/crypto/ssh
http://www.securityfocus.com/bid/97481
https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/
https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991
https://github.com/golang/go/issues/19767
https://godoc.org/golang.org/x/crypto/ssh

NVD	https://nvd.nist.gov/vuln/detail/CVE-2017-3204
CWE	https://cwe.mitre.org/data/definitions/310.html