usn-4325-1
Vulnerability from osv_ubuntu
Published
2020-04-07 23:25
Modified
2026-06-03 10:45
Summary
linux-azure, linux-gcp, linux-gke-5.0, linux-oem-osp1, linux-oracle-5.0 vulnerabilities
Details

It was discovered that the IPMI message handler implementation in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19046)

Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2020-8428)

References
To clipboard 

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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-8428",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.0.0-1014-oracle",
            "binary_version": "5.0.0-1014.19"
          },
          {
            "binary_name": "linux-headers-5.0.0-1014-oracle",
            "binary_version": "5.0.0-1014.19"
          },
          {
            "binary_name": "linux-image-unsigned-5.0.0-1014-oracle",
            "binary_version": "5.0.0-1014.19"
          },
          {
            "binary_name": "linux-modules-5.0.0-1014-oracle",
            "binary_version": "5.0.0-1014.19"
          },
          {
            "binary_name": "linux-modules-extra-5.0.0-1014-oracle",
            "binary_version": "5.0.0-1014.19"
          },
          {
            "binary_name": "linux-oracle-5.0-headers-5.0.0-1014",
            "binary_version": "5.0.0-1014.19"
          },
          {
            "binary_name": "linux-oracle-5.0-tools-5.0.0-1014",
            "binary_version": "5.0.0-1014.19"
          },
          {
            "binary_name": "linux-tools-5.0.0-1014-oracle",
            "binary_version": "5.0.0-1014.19"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "linux-oracle-5.0",
        "purl": "pkg:deb/ubuntu/linux-oracle-5.0@5.0.0-1014.19?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.0.0-1014.19"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.0.0-1007.12~18.04.1",
        "5.0.0-1008.13~18.04.1",
        "5.0.0-1009.14~18.04.1",
        "5.0.0-1010.15~18.04.1",
        "5.0.0-1011.16",
        "5.0.0-1013.18"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the IPMI message handler implementation in the Linux\nkernel did not properly deallocate memory in certain situations. A local\nattacker could use this to cause a denial of service (kernel memory\nexhaustion). (CVE-2019-19046)\n\nAl Viro discovered that the vfs layer in the Linux kernel contained a use-\nafter-free vulnerability. A local attacker could use this to cause a denial\nof service (system crash) or possibly expose sensitive information (kernel\nmemory). (CVE-2020-8428)\n",
  "id": "USN-4325-1",
  "modified": "2026-06-03T10:45:21Z",
  "published": "2020-04-07T23:25:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4325-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-19046"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-8428"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-azure, linux-gcp, linux-gke-5.0, linux-oem-osp1, linux-oracle-5.0 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-19046",
    "UBUNTU-CVE-2020-8428"
  ]
}



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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.