FKIE_CVE-2022-48757

Vulnerability from fkie_nvd - Published: 2024-06-20 12:15 - Updated: 2026-06-17 05:16
Severity
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new `packet_type` added by this packet socket by reading `/proc/net/ptype` file. This is minor information leakage as packet socket is namespace aware. Add a net pointer in `packet_type` to keep the net namespace of of corresponding packet socket. In `ptype_seq_show`, this net pointer must be checked when it is not NULL.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176beePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176beePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709bPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.17
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/netdevice.h",
            "net/core/net-procfs.c",
            "net/packet/af_packet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8f88c78d24f6f346919007cd459fd7e51a8c7779",
              "status": "affected",
              "version": "2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50",
              "versionType": "git"
            },
            {
              "lessThan": "be1ca30331c7923c6f376610c1bd6059be9b1908",
              "status": "affected",
              "version": "2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50",
              "versionType": "git"
            },
            {
              "lessThan": "c38023032a598ec6263e008d62c7f02def72d5c7",
              "status": "affected",
              "version": "2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50",
              "versionType": "git"
            },
            {
              "lessThan": "b67ad6170c0ea87391bb253f35d1f78857736e54",
              "status": "affected",
              "version": "2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50",
              "versionType": "git"
            },
            {
              "lessThan": "e372ecd455b6ebc7720f52bf4b5f5d44d02f2092",
              "status": "affected",
              "version": "2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50",
              "versionType": "git"
            },
            {
              "lessThan": "db044d97460ea792110eb8b971e82569ded536c6",
              "status": "affected",
              "version": "2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50",
              "versionType": "git"
            },
            {
              "lessThan": "e43669c77cb3a742b7d84ecdc7c68c4167a7709b",
              "status": "affected",
              "version": "2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50",
              "versionType": "git"
            },
            {
              "lessThan": "839ec7039513a4f84bfbaff953a9393471176bee",
              "status": "affected",
              "version": "2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50",
              "versionType": "git"
            },
            {
              "lessThan": "47934e06b65637c88a762d9c98329ae6e3238888",
              "status": "affected",
              "version": "2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/linux/netdevice.h",
            "net/core/net-procfs.c",
            "net/packet/af_packet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.26"
            },
            {
              "lessThan": "2.6.26",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.4.*",
              "status": "unaffected",
              "version": "4.4.302",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.300",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.228",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B484AD73-0FB6-4361-A7D3-D60042DFDC88",
              "versionEndExcluding": "4.4.302",
              "versionStartIncluding": "2.6.26",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A3BD638C-9597-4C2B-8024-32F57E1B53E3",
              "versionEndExcluding": "4.9.300",
              "versionStartIncluding": "4.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4F849B5B-93E9-438A-AE05-0380EC168436",
              "versionEndExcluding": "4.14.265",
              "versionStartIncluding": "4.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "87288F16-8DE4-4680-95D9-8601B47620D7",
              "versionEndExcluding": "4.19.228",
              "versionStartIncluding": "4.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "581D4C61-D3FC-4DB2-85E3-EE596EEBA89E",
              "versionEndExcluding": "5.4.176",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "27A6621A-A196-4220-957F-334B9124E477",
              "versionEndExcluding": "5.10.96",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DF69DD7C-FD57-4914-ABB0-FAEF87B0289D",
              "versionEndExcluding": "5.15.19",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1AD9E77E-B27E-450C-8FD8-B64EC5FB002D",
              "versionEndExcluding": "5.16.5",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix information leakage in /proc/net/ptype\n\nIn one net namespace, after creating a packet socket without binding\nit to a device, users in other net namespaces can observe the new\n`packet_type` added by this packet socket by reading `/proc/net/ptype`\nfile. This is minor information leakage as packet socket is\nnamespace aware.\n\nAdd a net pointer in `packet_type` to keep the net namespace of\nof corresponding packet socket. In `ptype_seq_show`, this net pointer\nmust be checked when it is not NULL."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: corrige la fuga de informaci\u00f3n en /proc/net/ptype en un espacio de nombres de red, despu\u00e9s de crear un socket de paquetes sin vincularlo a un dispositivo, los usuarios de otros espacios de nombres de red pueden observar la nueva `packet_type` agregado por este socket de paquete leyendo el archivo `/proc/net/ptype`. Esta es una fuga de informaci\u00f3n menor ya que el socket del paquete reconoce el espacio de nombres. Agregue un puntero de red en `packet_type` para mantener el espacio de nombres de red del socket de paquete correspondiente. En `ptype_seq_show`, este puntero de red debe verificarse cuando no sea NULL."
    }
  ],
  "id": "CVE-2022-48757",
  "lastModified": "2026-06-17T05:16:06.957",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-48757",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T17:10:16.134809Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-06-20T12:15:13.823",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176bee"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176bee"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-668"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.