cvelistv5 - CVE-2023-46250

CVE-2023-46250 (GCVE-0-2023-46250)

Vulnerability from cvelistv5 – Published: 2023-10-31 15:23 – Updated: 2024-09-05 18:54

Summary

pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions 3.7.0 through 3.16.4 can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations. The issue was fixed in version 3.17.0. As a workaround, apply the patch manually by modifying `pypdf/generic/_data_structures.py`.

Severity ?

5.1 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/py-pdf/pypdf/security/advisori…	x_refsource_CONFIRM
	https://github.com/py-pdf/pypdf/pull/2264	x_refsource_MISC
	https://github.com/py-pdf/pypdf/commit/9b23ac3c96…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	py-pdf	pypdf	Affected: >= 3.7.0, < 3.17.0

Show details on NVD website

JSON

To clipboard

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GSD-2023-46250

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-46250

Aliases

CVE-2023-46250

JSON

To clipboard

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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-835",
                "lang": "eng",
                "value": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f",
            "refsource": "MISC",
            "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f"
          },
          {
            "name": "https://github.com/py-pdf/pypdf/pull/2264",
            "refsource": "MISC",
            "url": "https://github.com/py-pdf/pypdf/pull/2264"
          },
          {
            "name": "https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d",
            "refsource": "MISC",
            "url": "https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-wjcc-cq79-p63f",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.17.0",
                "versionStartIncluding": "3.7.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2023-46250"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions 3.7.0 through 3.16.4 can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations. The issue was fixed in version 3.17.0. As a workaround, apply the patch manually by modifying `pypdf/generic/_data_structures.py`."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-835"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d",
              "refsource": "MISC",
              "tags": [
                "Patch"
              ],
              "url": "https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d"
            },
            {
              "name": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f"
            },
            {
              "name": "https://github.com/py-pdf/pypdf/pull/2264",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Patch"
              ],
              "url": "https://github.com/py-pdf/pypdf/pull/2264"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-11-08T17:51Z",
      "publishedDate": "2023-10-31T16:15Z"
    }
  }
}

FKIE_CVE-2023-46250

Vulnerability from fkie_nvd - Published: 2023-10-31 16:15 - Updated: 2024-11-21 08:28

Severity ?

5.1 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d	Patch
security-advisories@github.com	https://github.com/py-pdf/pypdf/pull/2264	Issue Tracking, Patch
security-advisories@github.com	https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/py-pdf/pypdf/pull/2264	Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f	Vendor Advisory

Impacted products

	Vendor	Product	Version
	pypdf_project	pypdf	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FC5F9A57-7CED-4B60-89E9-B33B91496624",
              "versionEndExcluding": "3.17.0",
              "versionStartIncluding": "3.7.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions 3.7.0 through 3.16.4 can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations. The issue was fixed in version 3.17.0. As a workaround, apply the patch manually by modifying `pypdf/generic/_data_structures.py`."
    },
    {
      "lang": "es",
      "value": "pypdf es una librer\u00eda de PDF pura de Python gratuita y de c\u00f3digo abierto. Un atacante que utilice una vulnerabilidad presente en las versiones 3.7.0 a 3.16.4 puede crear un PDF que genere un bucle infinito. Este bucle infinito bloquea el proceso actual y puede utilizar un solo n\u00facleo de la CPU al 100%. No afecta el uso de la memoria. Ese es, por ejemplo, el caso cuando el usuario de pypdf manipula un PDF malicioso entrante, por ejemplo fusion\u00e1ndolo con otro PDF o agregando anotaciones. El problema se solucion\u00f3 en la versi\u00f3n 3.17.0. Como workaround, aplique el parche manualmente modificando `pypdf/generic/_data_structures.py`."
    }
  ],
  "id": "CVE-2023-46250",
  "lastModified": "2024-11-21T08:28:10.137",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.4,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2023-10-31T16:15:09.930",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/py-pdf/pypdf/pull/2264"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/py-pdf/pypdf/pull/2264"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

GHSA-WJCC-CQ79-P63F

Vulnerability from github – Published: 2023-10-31 22:22 – Updated: 2023-10-31 22:22

Summary

Possible Infinite Loop when PdfWriter(clone_from) is used with a PDF

Details

Impact

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage.

That is, for example, the case when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations.

Patches

The issue was fixed with #2264

Workarounds

If you cannot update your version of pypdf, you should modify pypdf/generic/_data_structures.py just like #2264 did.

Severity ?

5.1 (Medium)


                  
                    CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pypdf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.7.0"
            },
            {
              "fixed": "3.17.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-46250"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-10-31T22:22:50Z",
    "nvd_published_at": "2023-10-31T16:15:09Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nAn attacker who uses this vulnerability can craft a PDF which leads to an infinite loop.\nThis infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage.\n\nThat is, for example, the case when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations.\n\n### Patches\nThe issue was fixed with #2264\n\n### Workarounds\nIf you cannot update your version of pypdf, you should modify `pypdf/generic/_data_structures.py` just like #2264 did.",
  "id": "GHSA-wjcc-cq79-p63f",
  "modified": "2023-10-31T22:22:50Z",
  "published": "2023-10-31T22:22:50Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46250"
    },
    {
      "type": "WEB",
      "url": "https://github.com/py-pdf/pypdf/pull/2264"
    },
    {
      "type": "WEB",
      "url": "https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/py-pdf/pypdf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Possible Infinite Loop when PdfWriter(clone_from) is used with a PDF"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2023-46250 (GCVE-0-2023-46250)

GSD-2023-46250

FKIE_CVE-2023-46250

GHSA-WJCC-CQ79-P63F

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature