Wind River Support Network


LIN6-11505 : CLONE - wrl 5 openssh issue with libssh2

Created: Jul 1, 2016    Updated: Dec 3, 2018
Resolved Date: Jul 6, 2016
Found In Version: 6.0
Fix Version:
Severity: Standard
Applicable for: Wind River Linux 6
Component/s: Networking


while testing libssh2  and OpenSSH we found out that there is problem with following configuration:

kex: diffie-hellman-group1-sha1
enc: (any)
mac: hmac-sha2-512

This configuration leads to following error message:
dh_gen_key: group too small: 1024 (2*need 1024)

It is OpenSSH that rejects connection – libssh2 seems to work correctly and it also seems that OpenSSH 6.5 solves the issue.

After checking the source code it should be following change that makes difference:

Reason for that change which is not clear by just reading CVS commit message is discussed in the following short conversation:
It appears that just by expertise of committer Damien Miller this is just fixed.

Other Downloads

Live chat