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.
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References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2019-09-02T22:03:34
Updated: 2024-08-05T01:03:30.919Z
Reserved: 2019-09-02T00:00:00
Link: CVE-2019-15847
Vulnrichment
No data.
NVD
Status : Modified
Published: 2019-09-02T23:15:10.837
Modified: 2024-11-21T04:29:36.210
Link: CVE-2019-15847
Redhat