FKIE_CVE-2023-52448

Vulnerability from fkie_nvd - Published: 2024-02-22 17:15 - Updated: 2026-06-17 06:42
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump Syzkaller has reported a NULL pointer dereference when accessing rgd->rd_rgl in gfs2_rgrp_dump(). This can happen when creating rgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in gfs2_rgrp_dump() to prevent that.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4faPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcdePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4faPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcdePatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/gfs2/rgrp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "efc8ef87ab9185a23d5676f2f7d986022d91bcde",
              "status": "affected",
              "version": "72244b6bc752b5c496f09de9a13c18adc314a53c",
              "versionType": "git"
            },
            {
              "lessThan": "5c28478af371a1c3fdb570ca67f110e1ae60fc37",
              "status": "affected",
              "version": "72244b6bc752b5c496f09de9a13c18adc314a53c",
              "versionType": "git"
            },
            {
              "lessThan": "ee0586d73cbaf0e7058bc640d62a9daf2dfa9178",
              "status": "affected",
              "version": "72244b6bc752b5c496f09de9a13c18adc314a53c",
              "versionType": "git"
            },
            {
              "lessThan": "d69d7804cf9e2ba171a27e5f98bc266f13d0414a",
              "status": "affected",
              "version": "72244b6bc752b5c496f09de9a13c18adc314a53c",
              "versionType": "git"
            },
            {
              "lessThan": "067a7c48c2c70f05f9460d6f0e8423e234729f05",
              "status": "affected",
              "version": "72244b6bc752b5c496f09de9a13c18adc314a53c",
              "versionType": "git"
            },
            {
              "lessThan": "c323efd620c741168c8e0cc6fc0be04ab57e331a",
              "status": "affected",
              "version": "72244b6bc752b5c496f09de9a13c18adc314a53c",
              "versionType": "git"
            },
            {
              "lessThan": "8877243beafa7c6bfc42022cbfdf9e39b25bd4fa",
              "status": "affected",
              "version": "72244b6bc752b5c496f09de9a13c18adc314a53c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/gfs2/rgrp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.268",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "991BF737-6083-429B-ACD5-FB27D4143E2F",
              "versionEndExcluding": "5.4.268",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5D2E4F24-2FBB-4434-8598-2B1499E566B5",
              "versionEndExcluding": "5.10.209",
              "versionStartIncluding": "5.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E25E1389-4B0F-407A-9C94-5908FF3EE88B",
              "versionEndExcluding": "5.15.148",
              "versionStartIncluding": "5.11.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2C4951FA-80C0-4B4C-9836-6E5035DEB0F9",
              "versionEndExcluding": "6.1.75",
              "versionStartIncluding": "5.16.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BDBBEB0E-D13A-4567-8984-51C5375350B9",
              "versionEndExcluding": "6.6.14",
              "versionStartIncluding": "6.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0EA3778C-730B-464C-8023-18CA6AC0B807",
              "versionEndExcluding": "6.7.2",
              "versionStartIncluding": "6.7.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump\n\nSyzkaller has reported a NULL pointer dereference when accessing\nrgd-\u003erd_rgl in gfs2_rgrp_dump().  This can happen when creating\nrgd-\u003erd_gl fails in read_rindex_entry().  Add a NULL pointer check in\ngfs2_rgrp_dump() to prevent that."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: gfs2: Se corrigi\u00f3 la desreferencia del puntero NULL del kernel en gfs2_rgrp_dump Syzkaller ha informado una desreferencia del puntero NULL al acceder a rgd-\u0026gt;rd_rgl en gfs2_rgrp_dump(). Esto puede suceder cuando la creaci\u00f3n de rgd-\u0026gt;rd_gl falla en read_rindex_entry(). Agregue una verificaci\u00f3n de puntero NULL en gfs2_rgrp_dump() para evitarlo."
    }
  ],
  "id": "CVE-2023-52448",
  "lastModified": "2026-06-17T06:42:43.313",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-52448",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-02-28T18:52:46.347708Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-22T17:15:08.630",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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

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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.