CVE-2019-15903: libexpat before 2.2.8 (exclusive); +5 more affected products

Affected technology

libexpat · before 2.2.8 (exclusive)
libexpat project

python · from 2.7.0 (inclusive), before 2.7.17 (exclusive)
python

python · from 3.5.0 (inclusive), before 3.5.8 (exclusive)
python

python · from 3.6.0 (inclusive), before 3.6.10 (exclusive)
python

python · from 3.7.0 (inclusive), before 3.7.5 (exclusive)
python

n/a · n/a
Vendor not specified by the source

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 2.2.8

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high. Source advisory’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.