Vulnerabilites related to pypdf2_project - pypdf2
CVE-2023-36464 (GCVE-0-2023-36464)
Vulnerability from cvelistv5
Published
2023-06-27 21:24
Modified
2024-12-03 16:56
Severity ?
6.2 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
pypdf is an open source, pure-python PDF library. In affected versions an attacker may craft a PDF which leads to an infinite loop if `__parse_content_stream` is executed. That is, for example, the case if the user extracted text from such a PDF. This issue was introduced in pull request #969 and resolved in pull request #1828. Users are advised to upgrade. Users unable to upgrade may modify the line `while peek not in (b"\r", b"\n")` in `pypdf/generic/_data_structures.py` to `while peek not in (b"\r", b"\n", b"")`.
References
Impacted products
Vendor Product Version
py-pdf pypdf Version: pypdf: < 3.90
Version: PyPDF2: >= 2.2.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2022-24859 (GCVE-0-2022-24859)
Vulnerability from cvelistv5
Published
2022-04-18 00:00
Modified
2025-04-22 18:15
Severity ?
6.2 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
PyPDF2 is an open source python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In versions prior to 1.27.5 an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if the PyPDF2 if the code attempts to get the content stream. The reason is that the last while-loop in `ContentStream._readInlineImage` only terminates when it finds the `EI` token, but never actually checks if the stream has already ended. This issue has been resolved in version `1.27.5`. Users unable to upgrade should validate and PDFs prior to iterating over their content stream.
References
Impacted products
Vendor Product Version
py-pdf PyPDF2 Version: < 1.27.5
 Create a notification for this product.
Show details on NVD website

To clipboard 

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Vulnerability from fkie_nvd
Published
2023-06-27 22:15
Modified
2024-11-21 08:09
Severity ?
6.2 (Medium) - CVSS:3.1/AV:L/AC:L/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
pypdf is an open source, pure-python PDF library. In affected versions an attacker may craft a PDF which leads to an infinite loop if `__parse_content_stream` is executed. That is, for example, the case if the user extracted text from such a PDF. This issue was introduced in pull request #969 and resolved in pull request #1828. Users are advised to upgrade. Users unable to upgrade may modify the line `while peek not in (b"\r", b"\n")` in `pypdf/generic/_data_structures.py` to `while peek not in (b"\r", b"\n", b"")`.
References
security-advisories@github.comhttps://github.com/py-pdf/pypdf/pull/1828Patch
security-advisories@github.comhttps://github.com/py-pdf/pypdf/pull/969Issue Tracking, Patch
security-advisories@github.comhttps://github.com/py-pdf/pypdf/security/advisories/GHSA-4vvm-4w3v-6mr8Exploit, Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/py-pdf/pypdf/pull/1828Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/py-pdf/pypdf/pull/969Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/py-pdf/pypdf/security/advisories/GHSA-4vvm-4w3v-6mr8Exploit, Patch
Impacted products
Vendor Product Version
pypdf_project pypdf *
pypdf2_project pypdf2 *


To clipboard 

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Vulnerability from fkie_nvd
Published
2022-04-18 19:15
Modified
2024-11-21 06:51
Severity ?
6.2 (Medium) - CVSS:3.1/AV:L/AC:L/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
PyPDF2 is an open source python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In versions prior to 1.27.5 an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if the PyPDF2 if the code attempts to get the content stream. The reason is that the last while-loop in `ContentStream._readInlineImage` only terminates when it finds the `EI` token, but never actually checks if the stream has already ended. This issue has been resolved in version `1.27.5`. Users unable to upgrade should validate and PDFs prior to iterating over their content stream.
References
security-advisories@github.comhttps://github.com/py-pdf/PyPDF2/issues/329Exploit, Third Party Advisory
security-advisories@github.comhttps://github.com/py-pdf/PyPDF2/pull/740Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/py-pdf/PyPDF2/releases/tag/1.27.5Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79Exploit, Third Party Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2022/06/msg00001.htmlMailing List, Third Party Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2023/06/msg00013.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/py-pdf/PyPDF2/issues/329Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/py-pdf/PyPDF2/pull/740Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/py-pdf/PyPDF2/releases/tag/1.27.5Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/06/msg00001.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/06/msg00013.html
Impacted products
Vendor Product Version
pypdf2_project pypdf2 *
debian debian_linux 9.0


To clipboard 

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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PyPDF2 is an open source python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In versions prior to 1.27.5 an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if the PyPDF2 if the code attempts to get the content stream. The reason is that the last while-loop in `ContentStream._readInlineImage` only terminates when it finds the `EI` token, but never actually checks if the stream has already ended. This issue has been resolved in version `1.27.5`. Users unable to upgrade should validate and PDFs prior to iterating over their content stream."
    },
    {
      "lang": "es",
      "value": "PyPDF2 es una librer\u00eda PDF de c\u00f3digo abierto capaz de dividir, fusionar, recortar y transformar las p\u00e1ginas de los archivos PDF. En versiones anteriores a 1.27.5 un atacante que use esta vulnerabilidad puede dise\u00f1ar un PDF que conlleva a un bucle infinito si el c\u00f3digo de PyPDF2 intenta conseguir el flujo de contenido. La raz\u00f3n es que el \u00faltimo bucle while en \"ContentStream._readInlineImage\" s\u00f3lo termina cuando encuentra el token \"EI\", pero nunca comprueba si el flujo ya ha terminado. Este problema ha sido resuelto en versi\u00f3n \"1.27.5\". Los usuarios que no puedan actualizarse deber\u00e1n comprobar y PDFs antes de iterar sobre su flujo de contenido"
    }
  ],
  "id": "CVE-2022-24859",
  "lastModified": "2024-11-21T06:51:15.173",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.2,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "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": "2022-04-18T19:15:09.757",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/py-pdf/PyPDF2/issues/329"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/py-pdf/PyPDF2/pull/740"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/py-pdf/PyPDF2/releases/tag/1.27.5"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00001.html"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00013.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/py-pdf/PyPDF2/issues/329"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/py-pdf/PyPDF2/pull/740"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
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      "url": "https://github.com/py-pdf/PyPDF2/releases/tag/1.27.5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79"
    },
    {
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00013.html"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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  ]
}