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usn-6338-1
Vulnerability from osv_ubuntu
Published
2023-09-05 21:49
Modified
2026-06-03 10:45
Summary
linux, linux-aws, linux-aws-6.2, linux-hwe-6.2, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-6.2, linux-raspi vulnerabilities
Details

Zi Fan Tan discovered that the binder IPC implementation in the Linux kernel contained 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-2023-21255)

It was discovered that a race condition existed in the f2fs file system in the Linux kernel, leading to a null pointer dereference vulnerability. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-2898)

It was discovered that the DVB Core driver in the Linux kernel did not properly handle locking events in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-31084)

Quentin Minster discovered that the KSMBD implementation in the Linux kernel did not properly handle session setup requests. A remote attacker could possibly use this to cause a denial of service (memory exhaustion). (CVE-2023-32247)

Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252, CVE-2023-32257)

It was discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling session connections, leading to a use- after-free vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32258)

It was discovered that the KSMBD implementation in the Linux kernel did not properly validate buffer sizes in certain operations, leading to an out-of- bounds read vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-38426, CVE-2023-38428)

It was discovered that the KSMBD implementation in the Linux kernel did not properly calculate the size of certain buffers. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-38429)

References
To clipboard 

{
  "affected": [
    {
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              "severity": [
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                  "type": "CVSS_V3"
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                  "score": "medium",
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              "id": "CVE-2023-38428",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
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              "id": "CVE-2023-38429",
              "severity": [
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                }
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                  "type": "CVSS_V3"
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              ]
            },
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              "severity": [
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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-2023-31084",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
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                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
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              "id": "CVE-2023-32247",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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              "id": "CVE-2023-32250",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-32252",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-32257",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-32258",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-38426",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-38428",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-38429",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-6.2.0-1012-lowlatency",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-buildinfo-6.2.0-1012-lowlatency-64k",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-cloud-tools-6.2.0-1012-lowlatency",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-headers-6.2.0-1012-lowlatency",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-headers-6.2.0-1012-lowlatency-64k",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-image-unsigned-6.2.0-1012-lowlatency",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-image-unsigned-6.2.0-1012-lowlatency-64k",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-lowlatency-hwe-6.2-cloud-tools-6.2.0-1012",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-lowlatency-hwe-6.2-cloud-tools-common",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-lowlatency-hwe-6.2-headers-6.2.0-1012",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-lowlatency-hwe-6.2-tools-6.2.0-1012",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-lowlatency-hwe-6.2-tools-common",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-lowlatency-hwe-6.2-tools-host",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-modules-6.2.0-1012-lowlatency",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-modules-6.2.0-1012-lowlatency-64k",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-modules-ipu6-6.2.0-1012-lowlatency",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-modules-ivsc-6.2.0-1012-lowlatency",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-modules-iwlwifi-6.2.0-1012-lowlatency",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-tools-6.2.0-1012-lowlatency",
            "binary_version": "6.2.0-1012.12~22.04.1"
          },
          {
            "binary_name": "linux-tools-6.2.0-1012-lowlatency-64k",
            "binary_version": "6.2.0-1012.12~22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "linux-lowlatency-hwe-6.2",
        "purl": "pkg:deb/ubuntu/linux-lowlatency-hwe-6.2@6.2.0-1012.12~22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.2.0-1012.12~22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.2.0-1008.8~22.04.1",
        "6.2.0-1009.9~22.04.1",
        "6.2.0-1011.11~22.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "\nZi Fan Tan discovered that the binder IPC implementation in the Linux\nkernel contained a use-after-free vulnerability. A local attacker could use\nthis to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2023-21255)\n\nIt was discovered that a race condition existed in the f2fs file system in\nthe Linux kernel, leading to a null pointer dereference vulnerability. An\nattacker could use this to construct a malicious f2fs image that, when\nmounted and operated on, could cause a denial of service (system crash).\n(CVE-2023-2898)\n\nIt was discovered that the DVB Core driver in the Linux kernel did not\nproperly handle locking events in certain situations. A local attacker\ncould use this to cause a denial of service (kernel deadlock).\n(CVE-2023-31084)\n\nQuentin Minster discovered that the KSMBD implementation in the Linux\nkernel did not properly handle session setup requests. A remote attacker\ncould possibly use this to cause a denial of service (memory exhaustion).\n(CVE-2023-32247)\n\nQuentin Minster discovered that a race condition existed in the KSMBD\nimplementation in the Linux kernel when handling sessions operations. A\nremote attacker could use this to cause a denial of service (system crash)\nor possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252,\nCVE-2023-32257)\n\nIt was discovered that a race condition existed in the KSMBD implementation\nin the Linux kernel when handling session connections, leading to a use-\nafter-free vulnerability. A remote attacker could use this to cause a\ndenial of service (system crash) or possibly execute arbitrary code.\n(CVE-2023-32258)\n\nIt was discovered that the KSMBD implementation in the Linux kernel did not\nproperly validate buffer sizes in certain operations, leading to an out-of-\nbounds read vulnerability. A remote attacker could use this to cause a\ndenial of service (system crash) or possibly expose sensitive information.\n(CVE-2023-38426, CVE-2023-38428)\n\nIt was discovered that the KSMBD implementation in the Linux kernel did not\nproperly calculate the size of certain buffers. A remote attacker could use\nthis to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2023-38429)\n\n",
  "id": "USN-6338-1",
  "modified": "2026-06-03T10:45:35Z",
  "published": "2023-09-05T21:49:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6338-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-2898"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-21255"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-31084"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-32247"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-32250"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-32252"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-32257"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-32258"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-38426"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-38428"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-38429"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux, linux-aws, linux-aws-6.2, linux-hwe-6.2, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-6.2, linux-raspi vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-2898",
    "UBUNTU-CVE-2023-21255",
    "UBUNTU-CVE-2023-31084",
    "UBUNTU-CVE-2023-32247",
    "UBUNTU-CVE-2023-32250",
    "UBUNTU-CVE-2023-32252",
    "UBUNTU-CVE-2023-32257",
    "UBUNTU-CVE-2023-32258",
    "UBUNTU-CVE-2023-38426",
    "UBUNTU-CVE-2023-38428",
    "UBUNTU-CVE-2023-38429"
  ]
}



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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.