{"cve":"CVE-2019-12817","nvd":{"published":"2019-06-25T12:15:11.030","modified":"2026-06-17T02:15:32.873","status":"Modified","description":"arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.0},"cwes":["CWE-787"],"references":["http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html","http://www.openwall.com/lists/oss-security/2019/06/24/5","http://www.securityfocus.com/bid/108884","https://access.redhat.com/errata/RHSA-2019:2703","https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.15"],"products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","linux:linux_kernel","opensuse:leap","redhat:enterprise_linux","redhat:enterprise_linux_eus","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_tus"],"source":"nvd","synced_at":"2026-10-19T20:57:00.690689396+00:00"},"epss":{"cve":"CVE-2019-12817","score":0.00386,"percentile":0.32713,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}