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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…
High7.0EPSS 0.39%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.39% · top 67% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.
Weakness
Affected products
n/a
- affected n/a
References (13)
- USN-4031-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [oss-security] 20190625 CVE-2019-12817: Linux kernel: powerpc: Unrelated processes may be able to read/write to each other's virtual memory (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca72d88378b2f2444d3ec145dd442d449d3fefbc (opens in a new tab)x_refsource_MISCx_transferred
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.15 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 108884 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2019-6817686c4d (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2019-69c132b061 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2019:1757 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- DSA-4495 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20190812 [SECURITY] [DSA 4495-1] linux security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- https://support.f5.com/csp/article/K12876166 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2019:2703 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://support.f5.com/csp/article/K12876166?utm_source=f5support&%3Butm_medium=RSS (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-12817)Record last updated .