This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2018-20685 →
UBUNTU-CVE-2018-20685
In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. T...
Original description
The description as published by the source.
In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Ubuntu:14.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:6.6p1-2ubuntu2.12"}]}]
Ubuntu:16.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.2p2-4ubuntu2.7"}]}]
Ubuntu:Pro:FIPS-updates:16.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.2p2-4ubuntu2.fips.2.8.1"}]}]
Ubuntu:Pro:FIPS:16.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.2p2-4ubuntu2.fips.2.10.1"}]}]
Ubuntu:18.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.6p1-4ubuntu0.2"}]}]
Ubuntu:18.04:LTS
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory ubuntu.com
- report ubuntu.com
- report sintonen.fi
- report lists.mindrot.org
- report cve.org