Vulnerability-Lookup

CNVD-2017-07246

Vulnerability from cnvd - Published: 2017-05-23

Title

YARA拒绝服务漏洞

Description

YARA是一套用于帮助软件研究人员识别和分类恶意软件样本的工具。 YARA 3.5.0中的regex组件存在拒绝服务漏洞。远程攻击者可利用该漏洞通过在yr_re_exec功能中处理不当的规则规则导致拒绝服务。

Severity

中

Patch Name

YARA拒绝服务漏洞的补丁

Patch Description

YARA是一套用于帮助软件研究人员识别和分类恶意软件样本的工具。 YARA 3.5.0中的regex组件存在拒绝服务漏洞。远程攻击者可利用该漏洞通过在yr_re_exec功能中处理不当的规则规则导致拒绝服务。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

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://github.com/VirusTotal/yara/commit/83d799804648c2a0895d40a19835d9b757c6fa4e

Reference

http://www.securityfocus.com/bid/98072 https://nvd.nist.gov/vuln/detail/CVE-2017-8294

Impacted products

Name
VirusTotal YARA 3.5.0

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "98072"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-8294",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8294"
    }
  },
  "description": "YARA\u662f\u4e00\u5957\u7528\u4e8e\u5e2e\u52a9\u8f6f\u4ef6\u7814\u7a76\u4eba\u5458\u8bc6\u522b\u548c\u5206\u7c7b\u6076\u610f\u8f6f\u4ef6\u6837\u672c\u7684\u5de5\u5177\u3002\r\n\r\nYARA 3.5.0\u4e2d\u7684regex\u7ec4\u4ef6\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u5728yr_re_exec\u529f\u80fd\u4e2d\u5904\u7406\u4e0d\u5f53\u7684\u89c4\u5219\u89c4\u5219\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "fumfel",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://github.com/VirusTotal/yara/commit/83d799804648c2a0895d40a19835d9b757c6fa4e",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-07246",
  "openTime": "2017-05-23",
  "patchDescription": "YARA\u662f\u4e00\u5957\u7528\u4e8e\u5e2e\u52a9\u8f6f\u4ef6\u7814\u7a76\u4eba\u5458\u8bc6\u522b\u548c\u5206\u7c7b\u6076\u610f\u8f6f\u4ef6\u6837\u672c\u7684\u5de5\u5177\u3002\r\n\r\nYARA 3.5.0\u4e2d\u7684regex\u7ec4\u4ef6\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u5728yr_re_exec\u529f\u80fd\u4e2d\u5904\u7406\u4e0d\u5f53\u7684\u89c4\u5219\u89c4\u5219\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": "YARA\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "VirusTotal YARA 3.5.0"
  },
  "referenceLink": "http://www.securityfocus.com/bid/98072\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-8294",
  "serverity": "\u4e2d",
  "submitTime": "2017-05-02",
  "title": "YARA\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-8294 (GCVE-0-2017-8294)

Vulnerability from cvelistv5 – Published: 2017-04-27 14:00 – Updated: 2024-08-05 16:34

Summary

libyara/re.c in the regex component in YARA 3.5.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted rule that is mishandled in the yr_re_exec function.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
http://www.securityfocus.com/bid/98072	vdb-entryx_refsource_BID
https://github.com/VirusTotal/yara/issues/646	x_refsource_CONFIRM
https://github.com/VirusTotal/yara/commit/83d7998…	x_refsource_CONFIRM

Date Public

2017-04-27 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T16:34:21.679Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "98072",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/98072"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/VirusTotal/yara/issues/646"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/VirusTotal/yara/commit/83d799804648c2a0895d40a19835d9b757c6fa4e"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2017-04-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "libyara/re.c in the regex component in YARA 3.5.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted rule that is mishandled in the yr_re_exec function."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-05-01T09:57:02.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "98072",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/98072"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/VirusTotal/yara/issues/646"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/VirusTotal/yara/commit/83d799804648c2a0895d40a19835d9b757c6fa4e"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-8294",
          "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": {
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            }
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        },
        "problemtype": {
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                  "lang": "eng",
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              "refsource": "CONFIRM",
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            },
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "state": "PUBLISHED"
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  "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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2017-07246

CVE-2017-8294 (GCVE-0-2017-8294)

Tags

Sightings

Nomenclature

Related by attack behaviour