GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration
lsn-0074-1
Vulnerability from osv_ubuntu
Published
2021-01-26 07:25
Modified
2026-06-03 10:46
Summary
Kernel Live Patch Security Notice
Details

Elena Petrova discovered that the pin controller device tree implementation in the Linux kernel did not properly handle string references. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-0427)

Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux kernel did not properly initialize memory in some situations. A physically proximate remote attacker could use this to expose sensitive information (kernel memory). (CVE-2020-12352)

It was discovered that the GENEVE tunnel implementation in the Linux kernel when combined with IPSec did not properly select IP routes in some situations. An attacker could use this to expose sensitive information (unencrypted network traffic). (CVE-2020-25645)

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)

References
To clipboard 

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              "fixed": "5.4.0-62.70"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-18.19",
        "5.3.0-24.26",
        "5.4.0-9.12",
        "5.4.0-18.22",
        "5.4.0-21.25",
        "5.4.0-24.28",
        "5.4.0-25.29",
        "5.4.0-26.30",
        "5.4.0-28.32",
        "5.4.0-29.33",
        "5.4.0-31.35",
        "5.4.0-33.37",
        "5.4.0-37.41",
        "5.4.0-39.43",
        "5.4.0-40.44",
        "5.4.0-42.46",
        "5.4.0-45.49",
        "5.4.0-47.51",
        "5.4.0-48.52",
        "5.4.0-51.56",
        "5.4.0-52.57",
        "5.4.0-53.59",
        "5.4.0-54.60",
        "5.4.0-56.62",
        "5.4.0-58.64",
        "5.4.0-59.65",
        "5.4.0-60.67"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Livepatch subscription required",
        "module_name_regex": "lkp_Ubuntu_5_4_0[_|\\d]+_gkeop_(\\d+)",
        "module_version": "74"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "linux-gkeop",
        "purl": "pkg:deb/ubuntu/linux-gkeop@5.4.0-1009.10?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1009.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-1008.9"
      ]
    }
  ],
  "aliases": [],
  "details": "Elena Petrova discovered that the pin controller device tree implementation\nin the Linux kernel did not properly handle string references. A local\nattacker could use this to expose sensitive information (kernel memory).\n(CVE-2020-0427)\n\nAndy Nguyen discovered that the Bluetooth A2MP implementation in the Linux\nkernel did not properly initialize memory in some situations. A physically\nproximate remote attacker could use this to expose sensitive information\n(kernel memory). (CVE-2020-12352)\n\nIt was discovered that the GENEVE tunnel implementation in the Linux kernel\nwhen combined with IPSec did not properly select IP routes in some\nsituations. An attacker could use this to expose sensitive information\n(unencrypted network traffic). (CVE-2020-25645)\n\nIt 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)",
  "id": "LSN-0074-1",
  "modified": "2026-06-03T10:46:31Z",
  "published": "2021-01-26T07:25:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/LSN-0074-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-0427"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12352"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-25645"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-28374"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "Kernel Live Patch Security Notice",
  "upstream": [
    "UBUNTU-CVE-2020-0427",
    "UBUNTU-CVE-2020-12352",
    "UBUNTU-CVE-2020-25645",
    "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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.