Debian 8: DLA-1728-1 Serious Vulnerabilities Found in Openssh Client

CVE-2018-20685

In scp.c, the scp client allowed remote SSH servers to bypass
intended access restrictions via the filename of . or an empty
filename. The impact was modifying the permissions of the target
directory on the client side.

CVE-2019-6109

Due to missing character encoding in the progress display, a
malicious server (or Man-in-The-Middle attacker) was able to employ
crafted object names to manipulate the client output, e.g., by using
ANSI control codes to hide additional files being transferred. This
affected refresh_progress_meter() in progressmeter.c.

CVE-2019-6111

Due to the scp implementation being derived from 1983 rcp, the server
chooses which files/directories are sent to the client. However, the
scp client only performed cursory validation of the object name
returned (only directory traversal attacks are prevented). A
malicious scp server (or Man-in-The-Middle attacker) was able to