CVE-2019-12817
High
CVE-2019-12817
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.
Exploit probability
0.4%
Published
June 25, 2019
Required by
Not available
Last source change
April 16, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2019-12817
View original source
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.
05 / REFERENCES
Further evidence
- 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
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca72d88378b2f2444d3ec145dd442d449d3fefbc
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OTLN3KQYEEWWAJYA4BUYYDMWWXCJQNV2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WSKLL2374YGFQR6LSVCFGTTCRGBTLAWZ/
- https://seclists.org/bugtraq/2019/Aug/13
- https://support.f5.com/csp/article/K12876166
- https://support.f5.com/csp/article/K12876166?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/4031-1/
- https://www.debian.org/security/2019/dsa-4495