CVE-2019-15847

Name
CVE-2019-15847
Description
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.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Issue Tracking https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91481
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00056.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00057.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00058.html

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* gcc >= None < 7.5.0
cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* gcc >= 8.0 < 8.4.0
cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* gcc >= 9.0 < 9.3.0
cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* gcc >= 10.0 < 10.1.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
gcc 3.11-main 9.3.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed