usn-4709-1
Vulnerability from osv_ubuntu
Published
2021-02-02 07:23
Modified
2026-06-03 10:45
Summary
linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
Details

It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data. (CVE-2020-28374)

Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13093)

It was discovered that the btrfs file system implementation in the Linux kernel did not properly validate file system metadata in some situations. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash). (CVE-2019-19813, CVE-2019-19816)

Bodong Zhao discovered a use-after-free in the Sun keyboard driver implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2020-25669)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
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              "severity": [
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                },
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                  "type": "CVSS_V3"
                },
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              ]
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
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                  "type": "Ubuntu"
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                  "type": "CVSS_V3"
                },
                {
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                  "type": "Ubuntu"
                }
              ]
            },
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              "id": "CVE-2020-25669",
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                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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                  "type": "Ubuntu"
                }
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              "id": "CVE-2020-28374",
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                {
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        }
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    {
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              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2019-19813",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
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              ]
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              "id": "CVE-2019-19816",
              "severity": [
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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                  "type": "CVSS_V3"
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                  "type": "Ubuntu"
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            {
              "id": "CVE-2020-28374",
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
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    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-13093",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2019-19813",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2019-19816",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-25669",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-28374",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
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            "binary_name": "linux-buildinfo-4.4.0-1149-snapdragon",
            "binary_version": "4.4.0-1149.159"
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        "name": "linux-snapdragon",
        "purl": "pkg:deb/ubuntu/linux-snapdragon@4.4.0-1149.159?arch=source\u0026distro=xenial"
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              "introduced": "0"
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            {
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      "versions": [
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        "4.4.0-1145.155",
        "4.4.0-1146.156",
        "4.4.0-1147.157"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the LIO SCSI target implementation in the Linux\nkernel performed insufficient identifier checking in certain XCOPY\nrequests. An attacker with access to at least one LUN in a multiple\nbackstore environment could use this to expose sensitive information or\nmodify data. (CVE-2020-28374)\n\nWen Xu discovered that the XFS filesystem implementation in the Linux\nkernel did not properly track inode validations. An attacker could use this\nto construct a malicious XFS image that, when mounted, could cause a denial\nof service (system crash). (CVE-2018-13093)\n\nIt was discovered that the btrfs file system implementation in the Linux\nkernel did not properly validate file system metadata in some situations.\nAn attacker could use this to construct a malicious btrfs image that, when\nmounted, could cause a denial of service (system crash). (CVE-2019-19813,\nCVE-2019-19816)\n\nBodong Zhao discovered a use-after-free in the Sun keyboard driver\nimplementation in the Linux kernel. A local attacker could use this to\ncause a denial of service or possibly execute arbitrary code.\n(CVE-2020-25669)\n",
  "id": "USN-4709-1",
  "modified": "2026-06-03T10:45:24Z",
  "published": "2021-02-02T07:23:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4709-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-13093"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-19813"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-19816"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-25669"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-28374"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2018-13093",
    "UBUNTU-CVE-2019-19813",
    "UBUNTU-CVE-2019-19816",
    "UBUNTU-CVE-2020-25669",
    "UBUNTU-CVE-2020-28374"
  ]
}



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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.