CVE catalog
CVE-2019-15847
DEBIAN-CVE-2019-15847
- Severity
- High · CVSS 7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 3.18% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Alpine | gcc | 3.11 | 9.3.0-r0 | fixed |
| Debian | gcc-9 | 11 | 9.2.1-7 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Alpine | gcc | apk | 3.11 | 9.3.0-r0 | Not reported | ALPINE-CVE-2019-15847 | Not reported |
| Debian | gcc-9 | deb | 11 | 9.2.1-7 | Not reported | DEBIAN-CVE-2019-15847 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2020_1864.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2019-15847]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-15847]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-15847.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]