CVE-2019-3862: libssh2 1.8.1; +7 more affected products

Affected technology

libssh2 · before 1.8.1 (exclusive)
libssh2

fedora · 29
fedoraproject

debian linux · 8.0
debian

ontap select deploy administration utility · Version not applicable in the source CPE
netapp

leap · 42.3
opensuse

libssh2 · 1.8.1
The libssh2 Project

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

Description’s affected range: before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.0): Network (remote) · No privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

The source reports that an attacker could disrupt service. Vendor/CNA’s CVSS 3.0 assessment (base score 7.3/10) rates confidentiality, integrity and availability impact as low. NVD’s CVSS 3.0 assessment (base score 9.1/10) rates confidentiality and availability impact as high; integrity impact as none.