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usn-6387-2
Vulnerability from osv_ubuntu
Published
2023-09-26 22:44
Modified
2026-06-03 10:45
Summary
linux-bluefield, linux-raspi, linux-raspi-5.4 vulnerabilities
Details

Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information. (CVE-2023-20588)

It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle L2CAP socket release, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-40283)

It was discovered that some network classifier implementations in the Linux kernel contained use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4128)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-4128",
              "severity": [
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                },
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                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
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            },
            {
              "id": "CVE-2023-40283",
              "severity": [
                {
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                  "type": "CVSS_V3"
                },
                {
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            }
          ],
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        }
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            {
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                {
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                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
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          },
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      "package": {
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        "purl": "pkg:deb/ubuntu/linux-raspi@5.4.0-1094.105?arch=source\u0026distro=focal"
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        "5.4.0-1078.89",
        "5.4.0-1079.90",
        "5.4.0-1080.91",
        "5.4.0-1081.92",
        "5.4.0-1082.93",
        "5.4.0-1083.94",
        "5.4.0-1084.95",
        "5.4.0-1085.96",
        "5.4.0-1086.97",
        "5.4.0-1088.99",
        "5.4.0-1089.100",
        "5.4.0-1090.101",
        "5.4.0-1091.102",
        "5.4.0-1092.103",
        "5.4.0-1093.104"
      ]
    }
  ],
  "aliases": [],
  "details": "Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii\nOleksenko discovered that some AMD processors could leak stale data from\ndivision operations in certain situations. A local attacker could possibly\nuse this to expose sensitive information. (CVE-2023-20588)\n\nIt was discovered that the bluetooth subsystem in the Linux kernel did not\nproperly handle L2CAP socket release, leading to a use-after-free\nvulnerability. A local attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2023-40283)\n\nIt was discovered that some network classifier implementations in the Linux\nkernel contained use-after-free vulnerabilities. A local attacker could use\nthis to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2023-4128)\n",
  "id": "USN-6387-2",
  "modified": "2026-06-03T10:45:35Z",
  "published": "2023-09-26T22:44:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6387-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-4128"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-20588"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-40283"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-bluefield, linux-raspi, linux-raspi-5.4 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-4128",
    "UBUNTU-CVE-2023-20588",
    "UBUNTU-CVE-2023-40283"
  ]
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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