DEBIAN-CVE-2019-15847

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Source
https://security-tracker.debian.org/tracker/CVE-2019-15847
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-15847.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2019-15847
Upstream
Published
2019-09-02T23:15:10Z
Modified
2025-09-30T03:54:40Z
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

Affected packages

Debian:11 / gcc-9

Package

Name
gcc-9
Purl
pkg:deb/debian/gcc-9?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.2.1-7

Ecosystem specific 

{
    "urgency": "low"
}