fkie_nvd - fkie_cve-2023-6992

FKIE_CVE-2023-6992

Vulnerability from fkie_nvd - Published: 2024-01-04 12:15 - Updated: 2024-11-21 08:44

Severity ?

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

Summary

Cloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation (deflate.c). The issues resulted from improper input validation and heap-based buffer overflow. A local attacker could exploit the problem during compression using a crafted malicious file potentially leading to denial of service of the software. Patches: The issue has been patched in commit 8352d10 https://github.com/cloudflare/zlib/commit/8352d108c05db1bdc5ac3bdf834dad641694c13c . The upstream repository is not affected.

References

URL	Tags
cna@cloudflare.com	https://github.com/cloudflare/zlib	Product
cna@cloudflare.com	https://github.com/cloudflare/zlib/security/advisories/GHSA-vww9-j87r-4cqh	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/cloudflare/zlib	Product
af854a3a-2127-422b-91ae-364da2661108	https://github.com/cloudflare/zlib/security/advisories/GHSA-vww9-j87r-4cqh	Patch, Third Party Advisory

Impacted products

	Vendor	Product	Version
	cloudflare	zlib	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cloudflare:zlib:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6DAB9F62-5C2E-43C9-838C-081351A38200",
              "versionEndExcluding": "2023-11-16",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation (deflate.c). The issues resulted from improper input validation and heap-based buffer overflow.\nA local attacker could exploit the problem during compression using a crafted malicious file potentially leading to denial of service of the software.\nPatches: The issue has been patched in commit  8352d10 https://github.com/cloudflare/zlib/commit/8352d108c05db1bdc5ac3bdf834dad641694c13c . The upstream repository is not affected.\n"
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 que la versi\u00f3n Cloudflare de la librer\u00eda zlib era vulnerable a problemas de corrupci\u00f3n de memoria que afectan la implementaci\u00f3n del algoritmo de deflaci\u00f3n (deflate.c). Los problemas se debieron a una validaci\u00f3n de entrada incorrecta y a un desbordamiento de b\u00fafer de almacenamiento din\u00e1mico. Un atacante local podr\u00eda aprovechar el problema durante la compresi\u00f3n utilizando un archivo malicioso manipulado que podr\u00eda provocar una denegaci\u00f3n de servicio del software. Parches: el problema se solucion\u00f3 en el commit 8352d10 https://github.com/cloudflare/zlib/commit/8352d108c05db1bdc5ac3bdf834dad641694c13c. El repositorio ascendente no se ve afectado."
    }
  ],
  "id": "CVE-2023-6992",
  "lastModified": "2024-11-21T08:44:59.467",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 4.0,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.4,
        "impactScore": 2.5,
        "source": "cna@cloudflare.com",
        "type": "Secondary"
      },
      {
        "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"
      }
    ]
  },
  "published": "2024-01-04T12:15:23.690",
  "references": [
    {
      "source": "cna@cloudflare.com",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/cloudflare/zlib"
    },
    {
      "source": "cna@cloudflare.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/cloudflare/zlib/security/advisories/GHSA-vww9-j87r-4cqh"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/cloudflare/zlib"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/cloudflare/zlib/security/advisories/GHSA-vww9-j87r-4cqh"
    }
  ],
  "sourceIdentifier": "cna@cloudflare.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-122"
        },
        {
          "lang": "en",
          "value": "CWE-126"
        }
      ],
      "source": "cna@cloudflare.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2023-6992 (GCVE-0-2023-6992)

Vulnerability from cvelistv5 – Published: 2024-01-04 11:11 – Updated: 2024-09-06 18:16

Summary

Severity ?

4 (Medium)


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

CWE

CWE-20 - Improper Input Validation
CWE-122 - Heap-based Buffer Overflow
CWE-126 - Buffer Over-read

Assigner

cloudflare

References

URL

Tags

	https://github.com/cloudflare/zlib	product
	https://github.com/cloudflare/zlib/security/advis…	vendor-advisory

Impacted products

	Vendor	Product	Version
	Cloudflare	zlib	Affected: 0 , < 8352d10 (git)

Credits

Martin Schwarzl

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T08:50:07.582Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "product",
              "x_transferred"
            ],
            "url": "https://github.com/cloudflare/zlib"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://github.com/cloudflare/zlib/security/advisories/GHSA-vww9-j87r-4cqh"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-6992",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-03-12T16:53:31.056293Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-06T18:16:58.376Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "zlib",
          "platforms": [
            "C"
          ],
          "product": "zlib",
          "repo": "https://github.com/cloudflare/zlib",
          "vendor": "Cloudflare",
          "versions": [
            {
              "lessThan": "8352d10",
              "status": "affected",
              "version": "0",
              "versionType": "git"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Martin Schwarzl"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eCloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation (deflate.c). The issues resulted from improper input validation and heap-based buffer overflow.\u003c/span\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eA local attacker could exploit the problem during compression using a crafted malicious file potentially leading to denial of service of the software.\u003c/span\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003ePatches: The issue has been patched in commit \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/cloudflare/zlib/commit/8352d108c05db1bdc5ac3bdf834dad641694c13c\"\u003e\u003ctt\u003e8352d10\u003c/tt\u003e\u003c/a\u003e. The upstream repository is not affected.\u003c/span\u003e\u003cbr\u003e"
            }
          ],
          "value": "Cloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation (deflate.c). The issues resulted from improper input validation and heap-based buffer overflow.\nA local attacker could exploit the problem during compression using a crafted malicious file potentially leading to denial of service of the software.\nPatches: The issue has been patched in commit  8352d10 https://github.com/cloudflare/zlib/commit/8352d108c05db1bdc5ac3bdf834dad641694c13c . The upstream repository is not affected.\n"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        },
        {
          "capecId": "CAPEC-17",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-17 Using Malicious Files"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122: Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-126",
              "description": "CWE-126: Buffer Over-read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-01-04T11:14:15.933Z",
        "orgId": "a22f1246-ba21-4bb4-a601-ad51614c1513",
        "shortName": "cloudflare"
      },
      "references": [
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/cloudflare/zlib"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/cloudflare/zlib/security/advisories/GHSA-vww9-j87r-4cqh"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Memory corruption issues is Cloudflare zlib implementation",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a22f1246-ba21-4bb4-a601-ad51614c1513",
    "assignerShortName": "cloudflare",
    "cveId": "CVE-2023-6992",
    "datePublished": "2024-01-04T11:11:07.558Z",
    "dateReserved": "2023-12-20T10:48:40.396Z",
    "dateUpdated": "2024-09-06T18:16:58.376Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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

FKIE_CVE-2023-6992

CVE-2023-6992 (GCVE-0-2023-6992)

Tags

Sightings

Nomenclature