CVE-2019-15847
Severity CVSS v4.0:
Pending analysis
Type:
CWE-331
Insufficient Entropy
Publication date:
02/09/2019
Last modified:
17/09/2020
Description
The POWER9 backend in GNU Compiler Collection (GCC) before version 10 could optimize multiple calls of the __builtin_darn intrinsic into a single call, thus reducing the entropy of the random number generator. This occurred because a volatile operation was not specified. For example, within a single execution of a program, the output of every __builtin_darn() call may be the same.
Impact
Base Score 3.x
7.50
Severity 3.x
HIGH
Base Score 2.0
5.00
Severity 2.0
MEDIUM
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* | 7.5.0 (excluding) | |
cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* | 8.0 (including) | 8.4.0 (excluding) |
cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* | 9.0 (including) | 9.3.0 (excluding) |
cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* | 10.0 (including) | 10.1.0 (excluding) |
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* | ||
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page