gsd-2020-7065
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
Aliases
Aliases
CVE-2020-7065


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-7065",
    "description": "In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.",
    "id": "GSD-2020-7065",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-7065.html",
      "https://www.debian.org/security/2020/dsa-4719",
      "https://access.redhat.com/errata/RHSA-2020:5275",
      "https://access.redhat.com/errata/RHSA-2020:3662",
      "https://ubuntu.com/security/CVE-2020-7065",
      "https://advisories.mageia.org/CVE-2020-7065.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2020-7065.html",
      "https://linux.oracle.com/cve/CVE-2020-7065.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-7065"
      ],
      "details": "In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.",
      "id": "GSD-2020-7065",
      "modified": "2023-12-13T01:21:51.810857Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ASSIGNER": "security@php.net",
        "DATE_PUBLIC": "2020-03-17T05:39:00.000Z",
        "ID": "CVE-2020-7065",
        "STATE": "PUBLIC",
        "TITLE": "mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "PHP",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "7.3.x",
                          "version_value": "7.3.16"
                        },
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                          "version_name": "7.4.x",
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                        }
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                ]
              },
              "vendor_name": "PHP Group"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "anatoly dot trosinenko at gmail dot com"
        }
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          }
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      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
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                "value": "CWE-121 Stack-based Buffer Overflow"
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      },
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            "name": "USN-4330-1",
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            "refsource": "MISC",
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          },
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          },
          {
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          }
        ]
      },
      "source": {
        "defect": [
          "https://bugs.php.net/bug.php?id=79371"
        ],
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
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        "problemtype": {
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      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-12-02T22:09Z",
      "publishedDate": "2020-04-01T04:15Z"
    }
  }
}


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