CVE-2019-15847: gcc before 7.5.0 (exclusive), from 8.0 (inclusive), before 8.4.0 (exclusive), from 9.0 (inclusive), before 9.3.0…

Affected technology

gcc · before 7.5.0 (exclusive)
gnu

gcc · from 8.0 (inclusive), before 8.4.0 (exclusive)
gnu

gcc · from 9.0 (inclusive), before 9.3.0 (exclusive)
gnu

gcc · from 10.0 (inclusive), before 10.1.0 (exclusive)
gnu

leap · 15.0
opensuse

leap · 15.1
opensuse

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 version 10 could optimize multiple calls of the __builtin_darn intrinsic into a single call

Component: Not specified by the source

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

What an attacker can do

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