CVE-2019-19816 (GCVE-0-2019-19816)

Vulnerability from cvelistv5 – Published: 2019-12-17 05:58 – Updated: 2024-08-05 02:25
VLAI
Summary
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:37:20+00:00",
      "cve": "CVE-2019-19816",
      "id": "CVE-2019-19816",
      "initial_release_date": "2019-12-17T00:00:00+00:00",
      "product_status:known_affected": "71",
      "product_status:known_not_affected": "33",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: out-of-bounds write in __btrfs_map_block in fs/btrfs/volumes.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-19816.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-01-02T03:16:26Z",
      "cve": "CVE-2019-19816",
      "id": "CVE-2019-19816",
      "initial_release_date": "2023-02-15T04:05:48Z",
      "product_status:known_not_affected": "192",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2019-19816",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-19816.json",
      "version": "16"
    }
  }
}



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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.