pysec - pysec-2021-112

PYSEC-2021-112

Vulnerability from pysec - Published: 2021-07-06 12:15 - Updated: 2021-07-08 03:14

Details

An integer overflow exists in pywin32 prior to version b301 when adding an access control entry (ACE) to an access control list (ACL) that would cause the size to be greater than 65535 bytes. An attacker who successfully exploited this vulnerability could crash the vulnerable process.

Impacted products

Name	purl
pywin32	pkg:pypi/pywin32

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pywin32",
        "purl": "pkg:pypi/pywin32"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "301"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "210",
        "214",
        "222",
        "223",
        "224",
        "225",
        "226",
        "227",
        "228",
        "300"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-32559",
    "GHSA-hwfp-hg2m-9vr2"
  ],
  "details": "An integer overflow exists in pywin32 prior to version b301 when adding an access control entry (ACE) to an access control list (ACL) that would cause the size to be greater than 65535 bytes. An attacker who successfully exploited this vulnerability could crash the vulnerable process.",
  "id": "PYSEC-2021-112",
  "modified": "2021-07-08T03:14:30.948663Z",
  "published": "2021-07-06T12:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mhammond/pywin32/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0017/FEYE-2021-0017.md"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-hwfp-hg2m-9vr2"
    }
  ]
}

GHSA-HWFP-HG2M-9VR2

Vulnerability from github – Published: 2021-08-09 20:43 – Updated: 2025-03-27 17:43

Summary

Integer overflow in pywin32

Details

Severity ?

6.5 (Medium)


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

7.1 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pywin32"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "301"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-32559"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-07-07T16:45:27Z",
    "nvd_published_at": "2021-07-06T12:15:00Z",
    "severity": "HIGH"
  },
  "details": "An integer overflow exists in pywin32 prior to version b301 when adding an access control entry (ACE) to an access control list (ACL) that would cause the size to be greater than 65535 bytes. An attacker who successfully exploited this vulnerability could crash the vulnerable process.",
  "id": "GHSA-hwfp-hg2m-9vr2",
  "modified": "2025-03-27T17:43:16Z",
  "published": "2021-08-09T20:43:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32559"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mhammond/pywin32/issues/1700"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mhammond/pywin32/pull/1701"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-hwfp-hg2m-9vr2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0017/FEYE-2021-0017.md"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mhammond/pywin32"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mhammond/pywin32/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pywin32/PYSEC-2021-112.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Integer overflow in pywin32"
}

CVE-2021-32559 (GCVE-0-2021-32559)

Vulnerability from cvelistv5 – Published: 2021-07-06 11:35 – Updated: 2024-08-03 23:25

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/mhammond/pywin32/releases	x_refsource_MISC
	https://github.com/fireeye/Vulnerability-Disclosu…	x_refsource_MISC
	https://github.com/mhammond/pywin32/issues/1700	x_refsource_MISC
	https://github.com/mhammond/pywin32/pull/1701	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:25:30.883Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/mhammond/pywin32/releases"
          },
          {
            "tags": [
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            ],
            "url": "https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0017/FEYE-2021-0017.md"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://github.com/mhammond/pywin32/issues/1700"
          },
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            ],
            "url": "https://github.com/mhammond/pywin32/pull/1701"
          }
        ],
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      }
    ],
    "cna": {
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          "versions": [
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      "descriptions": [
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          "lang": "en",
          "value": "An integer overflow exists in pywin32 prior to version b301 when adding an access control entry (ACE) to an access control list (ACL) that would cause the size to be greater than 65535 bytes. An attacker who successfully exploited this vulnerability could crash the vulnerable process."
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      ],
      "problemTypes": [
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              "type": "text"
            }
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      "providerMetadata": {
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      "references": [
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        },
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        },
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      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
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          "ID": "CVE-2021-32559",
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        "references": {
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              "refsource": "MISC",
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            },
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            },
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  "cveMetadata": {
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    "datePublished": "2021-07-06T11:35:05",
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}

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

PYSEC-2021-112

GHSA-HWFP-HG2M-9VR2

CVE-2021-32559 (GCVE-0-2021-32559)

Tags

Sightings

Nomenclature