CVE-2019-15847
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2019-15847
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-15847.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2019-15847
- Downstream
- Related
- Published
- 2019-09-02T23:15:10Z
- Modified
- 2025-10-21T04:52:49.177775Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
The POWER9 backend in GNU Compiler Collection (GCC) before version 10 could optimize multiple calls of the _builtindarn 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 _builtindarn() call may be the same.
- References