Vulnerability-Lookup

CNVD-2017-38233

Vulnerability from cnvd - Published: 2017-12-27

Title

Tor内存错误引用漏洞

Description

Tor（The Onion Router）是第二代洋葱路由（onion routing）的一种实现，主要用于匿名访问互联网。onion service v2是其中的一个匿名访问组件。 Tor中的onion service v2存在内存错误引用漏洞，该漏洞源于程序未能正确的处理过期清单。攻击者可利用该漏洞造成拒绝服务（崩溃）。

Severity

中

Patch Name

Tor内存错误引用漏洞的补丁

Patch Description

Formal description

厂商已发布漏洞修复程序，请及时关注更新： https://trac.torproject.org/projects/tor/ticket/24430

Reference

https://nvd.nist.gov/vuln/detail/CVE-2017-8823

Impacted products

Name
['Tor Tor < 0.2.5.16', 'Tor Tor >=0.2.6，<=0.2.8(<0.2.8.17)', 'Tor Tor <=0.2.9，<=0.2.9.14', 'Tor Tor >=0.3.0，<=0.3.0.13', 'Tor Tor >=0.3.1，<=0.3.1.9']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-8823"
    }
  },
  "description": "Tor\uff08The Onion Router\uff09\u662f\u7b2c\u4e8c\u4ee3\u6d0b\u8471\u8def\u7531\uff08onion routing\uff09\u7684\u4e00\u79cd\u5b9e\u73b0\uff0c\u4e3b\u8981\u7528\u4e8e\u533f\u540d\u8bbf\u95ee\u4e92\u8054\u7f51\u3002onion service v2\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u533f\u540d\u8bbf\u95ee\u7ec4\u4ef6\u3002\r\n\r\nTor\u4e2d\u7684onion service v2\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5904\u7406\u8fc7\u671f\u6e05\u5355\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5d29\u6e83\uff09\u3002",
  "discovererName": "Tor",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://trac.torproject.org/projects/tor/ticket/24430",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-38233",
  "openTime": "2017-12-27",
  "patchDescription": "Tor\uff08The Onion Router\uff09\u662f\u7b2c\u4e8c\u4ee3\u6d0b\u8471\u8def\u7531\uff08onion routing\uff09\u7684\u4e00\u79cd\u5b9e\u73b0\uff0c\u4e3b\u8981\u7528\u4e8e\u533f\u540d\u8bbf\u95ee\u4e92\u8054\u7f51\u3002onion service v2\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u533f\u540d\u8bbf\u95ee\u7ec4\u4ef6\u3002\r\n\r\nTor\u4e2d\u7684onion service v2\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5904\u7406\u8fc7\u671f\u6e05\u5355\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5d29\u6e83\uff09\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": "Tor\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Tor Tor \u003c 0.2.5.16",
      "Tor Tor \u003e=0.2.6\uff0c\u003c=0.2.8(\u003c0.2.8.17)",
      "Tor Tor \u003c=0.2.9\uff0c\u003c=0.2.9.14",
      "Tor Tor \u003e=0.3.0\uff0c\u003c=0.3.0.13",
      "Tor Tor \u003e=0.3.1\uff0c\u003c=0.3.1.9"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-8823",
  "serverity": "\u4e2d",
  "submitTime": "2017-12-04",
  "title": "Tor\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2017-8823 (GCVE-0-2017-8823)

Vulnerability from cvelistv5 – Published: 2017-12-03 07:00 – Updated: 2024-08-05 16:48

Summary

In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, there is a use-after-free in onion service v2 during intro-point expiration because the expiring list is mismanaged in certain error cases, aka TROVE-2017-013.

Severity

No CVSS data available.

CWE

use-after-free

Assigner

debian mitre root

References

4 references

URL	Tags
https://bugs.torproject.org/24313	x_refsource_CONFIRM
https://blog.torproject.org/new-stable-tor-releas…	x_refsource_CONFIRM
https://bugs.torproject.org/24430	x_refsource_CONFIRM
https://www.debian.org/security/2017/dsa-4054	vendor-advisoryx_refsource_DEBIAN

Impacted products

1 product

Vendor	Product	Version
n/a	Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9	Affected: Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9

Date Public

2017-12-03 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T16:48:22.276Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugs.torproject.org/24313"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugs.torproject.org/24430"
          },
          {
            "name": "DSA-4054",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2017/dsa-4054"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9"
            }
          ]
        }
      ],
      "datePublic": "2017-12-03T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, there is a use-after-free in onion service v2 during intro-point expiration because the expiring list is mismanaged in certain error cases, aka TROVE-2017-013."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "use-after-free",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-12-04T10:57:01.000Z",
        "orgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
        "shortName": "debian"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugs.torproject.org/24313"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugs.torproject.org/24430"
        },
        {
          "name": "DSA-4054",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2017/dsa-4054"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@debian.org",
          "ID": "CVE-2017-8823",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, there is a use-after-free in onion service v2 during intro-point expiration because the expiring list is mismanaged in certain error cases, aka TROVE-2017-013."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "use-after-free"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugs.torproject.org/24313",
              "refsource": "CONFIRM",
              "url": "https://bugs.torproject.org/24313"
            },
            {
              "name": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516",
              "refsource": "CONFIRM",
              "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516"
            },
            {
              "name": "https://bugs.torproject.org/24430",
              "refsource": "CONFIRM",
              "url": "https://bugs.torproject.org/24430"
            },
            {
              "name": "DSA-4054",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2017/dsa-4054"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
    "assignerShortName": "debian",
    "cveId": "CVE-2017-8823",
    "datePublished": "2017-12-03T07:00:00.000Z",
    "dateReserved": "2017-05-07T00:00:00.000Z",
    "dateUpdated": "2024-08-05T16:48:22.276Z",
    "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.

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.