VDB
ALPINE-CVE-2019-15847
ALPINE-CVE-2019-15847
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.11 | gcc | 0, 4.3.2-r0, 4.3.2-r1 |
Timeline
- Sep 2, 2019 CVE Published
- Nov 19, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch