GLSA-201801-05 : OpenSSH: Permission issue

Medium Nessus Plugin ID 105631


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-201801-05 (OpenSSH: Permission issue)

The process_open function in sftp-server.c in OpenSSH did not properly prevent write operations in readonly mode.
Impact :

A remote attacker could cause the creation of zero-length files.
Workaround :

There is no known workaround at this time.


All OpenSSH users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/openssh-7.5_p1-r3'

See Also

Plugin Details

Severity: Medium

ID: 105631

File Name: gentoo_GLSA-201801-05.nasl

Version: Revision: 3.2

Type: local

Published: 2018/01/08

Updated: 2018/01/26

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS v3.0

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:openssh, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2018/01/07

Reference Information

CVE: CVE-2017-15906

GLSA: 201801-05