Vulnerability-Lookup

CNVD-2021-89955

Vulnerability from cnvd - Published: 2021-11-23

Title

Gravity空指针解引用漏洞（CNVD-2021-89955）

Description

Gravity是一个用C编写的强大、动态类型、轻量级、嵌入式编程语言。 Gravity 0.8.1及更早版本中的gravity_ircode.c中的ircode_register_pop_context_protect()函数存在空指针解引用漏洞。攻击者可利用该漏洞导致拒绝服务。

Severity

中

Patch Name

Gravity空指针解引用漏洞（CNVD-2021-89955）的补丁

Patch Description

Gravity是一个用C编写的强大、动态类型、轻量级、嵌入式编程语言。 Gravity 0.8.1及更早版本中的gravity_ircode.c中的ircode_register_pop_context_protect()函数存在空指针解引用漏洞。攻击者可利用该漏洞导致拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/marcobambini/gravity/commit/115ee00eea6856576a59bf062be207ea8c9876b8

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-32284

Impacted products

Name
Creolabs Gravity <=0.8.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32284",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-32284"
    }
  },
  "description": "Gravity\u662f\u4e00\u4e2a\u7528C\u7f16\u5199\u7684\u5f3a\u5927\u3001\u52a8\u6001\u7c7b\u578b\u3001\u8f7b\u91cf\u7ea7\u3001\u5d4c\u5165\u5f0f\u7f16\u7a0b\u8bed\u8a00\u3002\n\nGravity 0.8.1\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684gravity_ircode.c\u4e2d\u7684ircode_register_pop_context_protect()\u51fd\u6570\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/marcobambini/gravity/commit/115ee00eea6856576a59bf062be207ea8c9876b8",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-89955",
  "openTime": "2021-11-23",
  "patchDescription": "Gravity\u662f\u4e00\u4e2a\u7528C\u7f16\u5199\u7684\u5f3a\u5927\u3001\u52a8\u6001\u7c7b\u578b\u3001\u8f7b\u91cf\u7ea7\u3001\u5d4c\u5165\u5f0f\u7f16\u7a0b\u8bed\u8a00\u3002\r\n\r\nGravity 0.8.1\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684gravity_ircode.c\u4e2d\u7684ircode_register_pop_context_protect()\u51fd\u6570\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Gravity\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2021-89955\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Creolabs Gravity \u003c=0.8.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-32284",
  "serverity": "\u4e2d",
  "submitTime": "2021-09-23",
  "title": "Gravity\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2021-89955\uff09"
}

CVE-2021-32284 (GCVE-0-2021-32284)

Vulnerability from cvelistv5 – Published: 2021-09-20 15:26 – Updated: 2024-08-03 23:17

Summary

An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function ircode_register_pop_context_protect() located in gravity_ircode.c. It allows an attacker to cause Denial of Service.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://github.com/marcobambini/gravity/issues/321

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:17:29.335Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/marcobambini/gravity/issues/321"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function ircode_register_pop_context_protect() located in gravity_ircode.c. It allows an attacker to cause Denial of Service."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-20T15:26:42.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/marcobambini/gravity/issues/321"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-32284",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function ircode_register_pop_context_protect() located in gravity_ircode.c. It allows an attacker to cause Denial of Service."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/marcobambini/gravity/issues/321",
              "refsource": "MISC",
              "url": "https://github.com/marcobambini/gravity/issues/321"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-32284",
    "datePublished": "2021-09-20T15:26:42.000Z",
    "dateReserved": "2021-05-07T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:17:29.335Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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

CNVD-2021-89955

CVE-2021-32284 (GCVE-0-2021-32284)

Tags

Sightings

Nomenclature