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CVE-2019-12817 (GCVE-0-2019-12817)

Vulnerability from cvelistv5 – Published: 2019-06-25 11:12 – Updated: 2024-08-04 23:32
VLAI
Summary
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.
Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
Show details on NVD website
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      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-787\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-12817\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2019-06-25T12:15:11.030\",\"lastModified\":\"2024-11-21T04:23:38.680\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\u0027s virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected.\"},{\"lang\":\"es\",\"value\":\"En el archivo arch/powerpc/mm/mmu_context_book3s64.c en el kernel de Linux anterior a versi\u00f3n 5.1.15 para powerpc, presenta un error (bug) por el cual procesos no relacionados pueden leer y escribir en la memoria virtual de otros bajo ciertas condiciones por medio de un mmap superior a 512 TB. S\u00f3lo un subconjunto de sistemas powerpc est\u00e1n 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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-28T06:13:49+00:00",
      "cve": "CVE-2019-12817",
      "id": "CVE-2019-12817",
      "initial_release_date": "2019-06-24T00:00:00+00:00",
      "product_status:fixed": "128",
      "product_status:known_not_affected": "72",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ppc: unrelated processes being able to read/write to each other\u0027s virtual memory",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-12817.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-03T00:54:13Z",
      "cve": "CVE-2019-12817",
      "id": "CVE-2019-12817",
      "initial_release_date": "2023-02-15T04:11:22Z",
      "product_status:known_affected": "57",
      "product_status:known_not_affected": "408",
      "product_status:recommended": "436",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2019-12817",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-12817.json",
      "version": "20"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.