usn-4367-1
Vulnerability from osv_ubuntu
Published
2020-05-24 02:16
Modified
2026-06-03 10:45
Summary
linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities
Details

It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service (system crash). (CVE-2019-19377)

It was discovered that the linux kernel did not properly validate certain mount options to the tmpfs virtual memory file system. A local attacker with the ability to specify mount options could use this to cause a denial of service (system crash). (CVE-2020-11565)

It was discovered that the block layer in the Linux kernel contained a race condition leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2020-12657)

References
To clipboard 

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            },
            {
              "fixed": "5.4.0-26.30"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-24.28"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the btrfs implementation in the Linux kernel did not\nproperly detect that a block was marked dirty in some situations. An\nattacker could use this to specially craft a file system image that, when\nunmounted, could cause a denial of service (system crash). (CVE-2019-19377)\n\nIt was discovered that the linux kernel did not properly validate certain\nmount options to the tmpfs virtual memory file system. A local attacker\nwith the ability to specify mount options could use this to cause a denial\nof service (system crash). (CVE-2020-11565)\n\nIt was discovered that the block layer in the Linux kernel contained a race\ncondition leading to a use-after-free vulnerability. A local attacker could\npossibly use this to cause a denial of service (system crash) or execute\narbitrary code. (CVE-2020-12657)\n",
  "id": "USN-4367-1",
  "modified": "2026-06-03T10:45:21Z",
  "published": "2020-05-24T02:16:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4367-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-19377"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11565"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12657"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12826"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-19377",
    "UBUNTU-CVE-2020-11565",
    "UBUNTU-CVE-2020-12657",
    "UBUNTU-CVE-2020-12826"
  ]
}



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Tags
Taxonomy of the tags.





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.