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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Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2019-6763 | 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. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T01:03:30.919Z
Reserved: 2019-09-02T00:00:00
Link: CVE-2019-15847
No data.
Status : Modified
Published: 2019-09-02T23:15:10.837
Modified: 2024-11-21T04:29:36.210
Link: CVE-2019-15847
OpenCVE Enrichment
No data.
EUVD