usn-4411-1
Vulnerability from osv_ubuntu
Published
2020-07-06 19:29
Modified
2026-06-03 10:45
Summary
linux, linux-aws, inux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities
Details

It was discovered that the elf handling code in the Linux kernel did not initialize memory before using it in certain situations. A local attacker could use this to possibly expose sensitive information (kernel memory). (CVE-2020-10732)

Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service (system crash). (CVE-2020-10711)

It was discovered that the SCSI generic (sg) driver in the Linux kernel did not properly handle certain error conditions correctly. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2020-12770)

It was discovered that the USB Gadget device driver in the Linux kernel did not validate arguments passed from configfs in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2020-13143)

It was discovered that the KVM implementation in the Linux kernel did not properly deallocate memory on initialization for some processors. A local attacker could possibly use this to cause a denial of service. (CVE-2020-12768)

References
To clipboard 

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                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12768",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "negligible",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12770",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-13143",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "block-modules-5.4.0-28-generic-di",
            "binary_version": "5.4.0-28.32"
          },
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        "name": "linux-riscv",
        "purl": "pkg:deb/ubuntu/linux-riscv@5.4.0-28.32?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-28.32"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-24.28",
        "5.4.0-26.30",
        "5.4.0-27.31"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the elf handling code in the Linux kernel did not\ninitialize memory before using it in certain situations. A local attacker\ncould use this to possibly expose sensitive information (kernel memory).\n(CVE-2020-10732)\n\nMatthew Sheets discovered that the SELinux network label handling\nimplementation in the Linux kernel could be coerced into de-referencing a\nNULL pointer. A remote attacker could use this to cause a denial of service\n(system crash). (CVE-2020-10711)\n\nIt was discovered that the SCSI generic (sg) driver in the Linux kernel did\nnot properly handle certain error conditions correctly. A local privileged\nattacker could use this to cause a denial of service (system crash).\n(CVE-2020-12770)\n\nIt was discovered that the USB Gadget device driver in the Linux kernel did\nnot validate arguments passed from configfs in some situations. A local\nattacker could possibly use this to cause a denial of service (system\ncrash) or possibly expose sensitive information. (CVE-2020-13143)\n\nIt was discovered that the KVM implementation in the Linux kernel did not\nproperly deallocate memory on initialization for some processors. A local\nattacker could possibly use this to cause a denial of service.\n(CVE-2020-12768)\n",
  "id": "USN-4411-1",
  "modified": "2026-06-03T10:45:21Z",
  "published": "2020-07-06T19:29:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4411-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-10711"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-10732"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12768"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12770"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-13143"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux, linux-aws, inux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-10711",
    "UBUNTU-CVE-2020-10732",
    "UBUNTU-CVE-2020-12768",
    "UBUNTU-CVE-2020-12770",
    "UBUNTU-CVE-2020-13143"
  ]
}



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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.