GHSA-rf68-2835-83vwHighCVSS 7.5
The POWER9 backend in GNU Compiler Collection (GCC) before version 10 could optimize multiple...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2019-15847
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91481
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00056.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00057.html
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00058.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://github.com/advisories/GHSA-rf68-2835-83vw