Home/CVE/arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes
CVE

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

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.

HIGH · CVSS 7 EPSS 0.00064
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-787Out-of-bounds Write
▤

Affected Products & Versions

9
canonical ubuntu linuxall versions
linux kernel< 5.1.15
fedoraproject fedoraall versions
debian linuxall versions
opensuse leapall versions
redhat enterprise linuxall versions
redhat enterprise linux eusall versions
redhat enterprise linux server ausall versions
▣

Scoring & Timeline

7
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Jun 2019 · 12:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

8
suse-csafSUSE-SU-2019:2430-1
suse-csafSUSE-SU-2019:2069-1
suse-csafopenSUSE-SU-2019:1757-1
suse-csafSUSE-SU-2019:1765-1
suse-csafSUSE-SU-2019:1769-1
🔗

References & Sources

12
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.htmlMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/06/24/5Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/108884Broken Link
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.15Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca72d88378b2f2444d3ec145dd442d449d3fefbcPatchVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OTLN3KQYEEWWAJYA4BUYYDMWWXCJQNV2/
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