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Vulnerability of OpenSSH, WinSCP: file overwrite via Scp Client Object Name Not Validated

Synthesis of the vulnerability 

An attacker can send an unexpected object to the scp client of OpeSSH/WinSCP, in order to overwrite files in the current directory of the scp client.
Impacted products: Debian, Fedora, FreeBSD, AIX, IBM i, OpenSSH, openSUSE Leap, Solaris, RHEL, RSA Authentication Manager, SUSE Linux Enterprise Desktop, SLES, Synology DSM, Synology DS***, Synology RS***, Ubuntu, WinSCP.
Severity of this bulletin: 3/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 11/01/2019.
Revision date: 14/01/2019.
Références of this threat: 1675, bulletinjan2019, CERTFR-2019-AVI-179, CVE-2018-20684, CVE-2019-6111, DLA-1728-1, DSA-2019-117, DSA-4387-1, DSA-4387-2, FEDORA-2019-0f4190cdb0, FreeBSD-EN-19:10.scp, ibm10731015, openSUSE-SU-2019:0091-1, openSUSE-SU-2019:0093-1, openSUSE-SU-2019:0307-1, openSUSE-SU-2019:1602-1, RHSA-2019:3702-01, SUSE-SU-2019:0125-1, SUSE-SU-2019:0126-1, SUSE-SU-2019:0132-1, SUSE-SU-2019:0496-1, SUSE-SU-2019:0941-1, SUSE-SU-2019:13931-1, SUSE-SU-2019:14016-1, SUSE-SU-2019:14030-1, SUSE-SU-2019:1524-1, USN-3885-1, USN-3885-2, VIGILANCE-VUL-28245.

Description of the vulnerability 

An attacker can send an unexpected object to the scp client of OpeSSH/WinSCP, in order to overwrite files in the current directory of the scp client.
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This weakness announce impacts software or systems such as Debian, Fedora, FreeBSD, AIX, IBM i, OpenSSH, openSUSE Leap, Solaris, RHEL, RSA Authentication Manager, SUSE Linux Enterprise Desktop, SLES, Synology DSM, Synology DS***, Synology RS***, Ubuntu, WinSCP.

Our Vigil@nce team determined that the severity of this vulnerability alert is important.

The trust level is of type confirmed by the editor, with an origin of internet server.

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this computer threat announce.

Solutions for this threat 

OpenSSH: version 8.0.
The version 8.0 is fixed:
  https://www.openssh.com/

WinSCP: version 5.15.
The version 5.15 is fixed:
  https://winscp.net/eng/download.php

WinSCP: patch for Scp Client Object Name Not Validated.
A patch is indicated in information sources.

AIX: patch for OpenSSH.
A patch is available:
  https://www-01.ibm.com/marketing/iwm/iwm/web/pickUrxNew.do?source=aixbp&S_PKG=openssh
Workarounds are required.

Cloud Foundry BOSH: fixed versions for OpenSSH.
Fixed versions are indicated in information sources.

Cloud Foundry: fixed versions for OpenSSH.
Fixed versions are indicated in information sources.

Debian 8: new openssh packages.
New packages are available:
  Debian 8: openssh 1:6.7p1-5+deb8u8

Debian 9: new openssh packages.
New packages are available:
  Debian 9: openssh 1:7.4p1-10+deb9u6

Fedora: new openssh packages.
New packages are available:
  Fedora 30: openssh 8.0p1-1.fc30

FreeBSD: patch for scp.
A patch is available:
  FreeBSD 12.0: https://security.freebsd.org/patches/EN-19:10/scp.patch

IBM i: patch for OpenSSH.
A patch is indicated in information sources.

openSUSE Leap 15.0: new openssh packages (08/03/2019).
New packages are available:
  openSUSE Leap 15.0: openssh 7.6p1-lp150.8.15.2

openSUSE Leap 15.0: new openssh packages (28/01/2019).
New packages are available:
  openSUSE Leap 15.0: openssh 7.6p1-lp150.8.9.1

openSUSE Leap 42.3: new openssh packages (25/06/2019).
New packages are available:
  openSUSE Leap 42.3: openssh 7.2p2-35.1

openSUSE Leap 42.3: new openssh packages (30/01/2019).
New packages are available:
  openSUSE Leap 42.3: openssh 7.2p2-29.1

Oracle Solaris: patch for third party software of January 2019 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 8: new openssh packages.
New packages are available:
  RHEL 8: openssh 8.0p1-3.el8

RSA Authentication Manager: version 8.4 Patch 5.
The version 8.4 Patch 5 is fixed:
  https://www.dell.com/support/

SUSE LE 11: new openssh packages.
New packages are available:
  SUSE LE 11 SP3: openssh 6.6p1-41.18.1
  SUSE LE 11 SP4: openssh 6.6p1-36.20.1

SUSE LE 12: new openssh packages.
New packages are available:
  SUSE LE 12 SP2: openssh 7.2p2-74.42.8
  SUSE LE 12 SP3: openssh 7.2p2-74.42.8
  SUSE LE 12 SP4: openssh 7.2p2-74.42.8

SUSE LE 12 RTM/SP1: new openssh packages.
New packages are available:
  SUSE LE 12 RTM: openssh 6.6p1-54.32.1
  SUSE LE 12 SP1: openssh 6.6p1-54.32.1

SUSE LE 15: new openssh packages.
New packages are available:
  SUSE LE 15 RTM: openssh 7.6p1-9.23.1

SUSE LE: new openssh packages.
New packages are available:
  SUSE LE 11 SP4: openssh 6.6p1-36.12.1
  SUSE LE 12 RTM: openssh 6.6p1-54.26.1
  SUSE LE 12 SP1: openssh 6.6p1-54.26.1
  SUSE LE 12 SP2: openssh 7.2p2-74.35.1
  SUSE LE 12 SP3: openssh 7.2p2-74.35.1
  SUSE LE 12 SP4: openssh 7.2p2-74.35.1
  SUSE LE 15 RTM: openssh 7.6p1-9.13.1

Synology DSM: version 6.2.2-24922.
The version 6.2.2-24922 is fixed.

Synology DS/RS: version 6.2.2-24922.
The version 6.2.2-24922 is fixed:
  https://www.synology.com/

Ubuntu: new openssh-client packages.
New packages are available:
  Ubuntu 18.10: openssh-client 1:7.7p1-4ubuntu0.3
  Ubuntu 18.04 LTS: openssh-client 1:7.6p1-4ubuntu0.3
  Ubuntu 16.04 LTS: openssh-client 1:7.2p2-4ubuntu2.8
  Ubuntu 14.04 LTS: openssh-client 1:6.6p1-2ubuntu2.13

Wind River Linux: solution (21/05/2019).
The solution is indicated in information sources.
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