CVE-2018-20685

Priority
Description
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.
Assigned-to
mdeslaur
Notes
sarnoldopenssh-ssh1 is provided for compatibility with old devices that
cannot be upgraded to modern protocols. Thus we may not provide security
support for this package if doing so would prevent access to equipment.
mdeslaurThe recommended workaround for this issue is to switch to using
sftp instead of scp.
Package
Upstream:released (1:7.9p1-5)
Ubuntu 12.04 ESM (Precise Pangolin):needed
Ubuntu 14.04 ESM (Trusty Tahr):released (1:6.6p1-2ubuntu2.12)
Ubuntu 16.04 LTS (Xenial Xerus):released (1:7.2p2-4ubuntu2.7)
Ubuntu 18.04 LTS (Bionic Beaver):released (1:7.6p1-4ubuntu0.2)
Ubuntu 19.10 (Eoan Ermine):released (1:7.9p1-5)
Ubuntu 20.04 (Focal Fossa):released (1:7.9p1-5)
Patches:
Upstream:https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2
Upstream:https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=h
Package
Upstream:ignored (frozen on openssh 7.5p)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):needs-triage
Ubuntu 19.10 (Eoan Ermine):needs-triage
Ubuntu 20.04 (Focal Fossa):needs-triage
More Information

Updated: 2020-04-24 03:49:42 UTC (commit d3f8a6ed481830fb100109a132bef581fc4176fe)