lsn-0073-1
Vulnerability from osv_ubuntu
Published
2020-10-23 07:23
Modified
2026-07-09 23:26
Summary
Kernel Live Patch Security Notice
Details

Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux kernel contained a type-confusion error. A physically proximate remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-12351)

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)

Andy Nguyen discovered that the Bluetooth HCI event packet parser in the Linux kernel did not properly handle event advertisements of certain sizes, leading to a heap-based buffer overflow. A physically proximate remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-24490)

References
To clipboard 

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      ],
      "versions": [
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        "5.3.0-24.26",
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    }
  ],
  "aliases": [],
  "details": "Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux\nkernel contained a type-confusion error. A physically proximate remote\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2020-12351)\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\nAndy Nguyen discovered that the Bluetooth HCI event packet parser in the\nLinux kernel did not properly handle event advertisements of certain sizes,\nleading to a heap-based buffer overflow. A physically proximate remote\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2020-24490)",
  "id": "LSN-0073-1",
  "modified": "2026-07-09T23:26:33Z",
  "published": "2020-10-23T07:23:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/LSN-0073-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12351"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12352"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-24490"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "Kernel Live Patch Security Notice",
  "upstream": [
    "UBUNTU-CVE-2020-12351",
    "UBUNTU-CVE-2020-12352",
    "UBUNTU-CVE-2020-24490"
  ]
}



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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.