CVE-2019-15847

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

7.5 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS — סבירות ניצול

3% (אחוזון 100) נכון ל-14/10/2026

CWE

CWE-331

מוצרים מושפעים

gnu: gcc; opensuse: leap

קישורים

• https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91481 Issue TrackingVendor Advisory
• https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91481 Issue TrackingVendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00056.html Mailing ListThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00057.html Mailing ListThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00058.html Mailing ListThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00056.html Mailing ListThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00057.html Mailing ListThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00058.html Mailing ListThird Party Advisory
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html