Vulnerability-Lookup

CNVD-2021-99302

Vulnerability from cnvd - Published: 2021-12-13

Title

vim释放后重用漏洞（CNVD-2021-99302）

Description

Vim是一款功能强大、高度可定制的文本编辑器，是vi的改进版本，在Vi的基础上改进和增加了很多特性。 vim 8.2.3425版存在释放后重用漏洞。攻击者可利用该漏洞执行代码。

Severity

中

Patch Name

vim释放后重用漏洞（CNVD-2021-99302）的补丁

Patch Description

Vim是一款功能强大、高度可定制的文本编辑器，是vi的改进版本，在Vi的基础上改进和增加了很多特性。 vim 8.2.3425版存在释放后重用漏洞。攻击者可利用该漏洞执行代码。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/vim/vim/commit/35a9a00afcb20897d462a766793ff45534810dc3

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-3796

Impacted products

Name
vim.org VIM 8.2.3425

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-3796",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-3796"
    }
  },
  "description": "Vim\u662f\u4e00\u6b3e\u529f\u80fd\u5f3a\u5927\u3001\u9ad8\u5ea6\u53ef\u5b9a\u5236\u7684\u6587\u672c\u7f16\u8f91\u5668\uff0c\u662fvi\u7684\u6539\u8fdb\u7248\u672c\uff0c\u5728Vi\u7684\u57fa\u7840\u4e0a\u6539\u8fdb\u548c\u589e\u52a0\u4e86\u5f88\u591a\u7279\u6027\u3002\n\nvim 8.2.3425\u7248\u5b58\u5728\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4ee3\u7801\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/vim/vim/commit/35a9a00afcb20897d462a766793ff45534810dc3",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-99302",
  "openTime": "2021-12-13",
  "patchDescription": "Vim\u662f\u4e00\u6b3e\u529f\u80fd\u5f3a\u5927\u3001\u9ad8\u5ea6\u53ef\u5b9a\u5236\u7684\u6587\u672c\u7f16\u8f91\u5668\uff0c\u662fvi\u7684\u6539\u8fdb\u7248\u672c\uff0c\u5728Vi\u7684\u57fa\u7840\u4e0a\u6539\u8fdb\u548c\u589e\u52a0\u4e86\u5f88\u591a\u7279\u6027\u3002\r\n\r\nvim 8.2.3425\u7248\u5b58\u5728\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4ee3\u7801\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": "vim\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\uff08CNVD-2021-99302\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "vim.org VIM 8.2.3425"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-3796",
  "serverity": "\u4e2d",
  "submitTime": "2021-09-16",
  "title": "vim\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\uff08CNVD-2021-99302\uff09"
}

CVE-2021-3796 (GCVE-0-2021-3796)

Vulnerability from cvelistv5 – Published: 2021-09-15 00:00 – Updated: 2024-08-03 17:09

Title

Use After Free in vim/vim

Summary

vim is vulnerable to Use After Free

Severity

8.2 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L

CWE

CWE-416 - Use After Free

Assigner

@huntrdev Scorecard

References

9 references

URL	Tags
https://huntr.dev/bounties/ab60b7f3-6fb1-4ac2-a4f…
https://github.com/vim/vim/commit/35a9a00afcb2089…
http://www.openwall.com/lists/oss-security/2021/10/01/1	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
https://security.gentoo.org/glsa/202208-32	vendor-advisory
https://security.netapp.com/advisory/ntap-2022111…

Impacted products

1 product

Vendor	Product	Version
vim	vim/vim	Affected: unspecified , ≤ 8.2.3428 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:08.968Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://huntr.dev/bounties/ab60b7f3-6fb1-4ac2-a4fa-4d592e08008d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/vim/vim/commit/35a9a00afcb20897d462a766793ff45534810dc3"
          },
          {
            "name": "[oss-security] 20210930 3 new CVE\u0027s in vim",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/10/01/1"
          },
          {
            "name": "FEDORA-2021-968f57ec98",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TE62UMYBZE4AE53K6OBBWK32XQ7544QM/"
          },
          {
            "name": "FEDORA-2021-84f4cf3244",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/"
          },
          {
            "name": "FEDORA-2021-6988830606",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/"
          },
          {
            "name": "[debian-lts-announce] 20220110 [SECURITY] [DLA 2876-1] vim security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/01/msg00003.html"
          },
          {
            "name": "GLSA-202208-32",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202208-32"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20221118-0004/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "vim/vim",
          "vendor": "vim",
          "versions": [
            {
              "lessThanOrEqual": "8.2.3428",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "vim is vulnerable to Use After Free"
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416 Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-11-18T00:00:00.000Z",
        "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
        "shortName": "@huntrdev"
      },
      "references": [
        {
          "url": "https://huntr.dev/bounties/ab60b7f3-6fb1-4ac2-a4fa-4d592e08008d"
        },
        {
          "url": "https://github.com/vim/vim/commit/35a9a00afcb20897d462a766793ff45534810dc3"
        },
        {
          "name": "[oss-security] 20210930 3 new CVE\u0027s in vim",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/10/01/1"
        },
        {
          "name": "FEDORA-2021-968f57ec98",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TE62UMYBZE4AE53K6OBBWK32XQ7544QM/"
        },
        {
          "name": "FEDORA-2021-84f4cf3244",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/"
        },
        {
          "name": "FEDORA-2021-6988830606",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/"
        },
        {
          "name": "[debian-lts-announce] 20220110 [SECURITY] [DLA 2876-1] vim security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/01/msg00003.html"
        },
        {
          "name": "GLSA-202208-32",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202208-32"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20221118-0004/"
        }
      ],
      "source": {
        "advisory": "ab60b7f3-6fb1-4ac2-a4fa-4d592e08008d",
        "discovery": "EXTERNAL"
      },
      "title": "Use After Free in vim/vim"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
    "assignerShortName": "@huntrdev",
    "cveId": "CVE-2021-3796",
    "datePublished": "2021-09-15T00:00:00.000Z",
    "dateReserved": "2021-09-11T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:09:08.968Z",
    "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.
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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.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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CNVD-2021-99302

CVE-2021-3796 (GCVE-0-2021-3796)

Tags

Sightings

Nomenclature

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