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computer vulnerability CVE-2018-20684 CVE-2019-6111

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, IBM i, OpenSSH, openSUSE Leap, Solaris, SUSE Linux Enterprise Desktop, SLES, Synology DSM, Synology DS***, Synology RS***, Ubuntu, WinSCP.
Severity of this bulletin: 3/4.
Consequences of an intrusion: data creation/edition, denial of service on client.
Hacker's origin: internet server.
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-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, 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...
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