Vulnerability-Lookup

CNVD-2018-05901

Vulnerability from cnvd - Published: 2018-03-21

Title

Tor拒绝服务漏洞（CNVD-2018-05901）

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。 Tor 0.2.9.15之前版本、0.3.1.10之前的0.3.1.x版本和0.3.2.10之前的0.3.2.x版本中存在安全漏洞。远程攻击者可利用该漏洞造成拒绝服务（空指针逆向引用和崩溃）。

Severity

中

Patch Name

Tor拒绝服务漏洞（CNVD-2018-05901）的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915

Reference

https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915 https://trac.torproject.org/projects/tor/ticket/25074

Impacted products

Name
['Tor Tor <0.2.9.15', 'Tor Tor 0.3.1.，<0.3.1.10', 'Tor Tor 0.3.2.，<0.3.2.10']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-0490"
    }
  },
  "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\u3002\r\n\r\nTor 0.2.9.15\u4e4b\u524d\u7248\u672c\u30010.3.1.10\u4e4b\u524d\u76840.3.1.x\u7248\u672c\u548c0.3.2.10\u4e4b\u524d\u76840.3.2.x\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548c\u5d29\u6e83\uff09\u3002",
  "discovererName": "unknown",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-05901",
  "openTime": "2018-03-21",
  "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\u3002\r\n\r\nTor 0.2.9.15\u4e4b\u524d\u7248\u672c\u30010.3.1.10\u4e4b\u524d\u76840.3.1.x\u7248\u672c\u548c0.3.2.10\u4e4b\u524d\u76840.3.2.x\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548c\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-05901\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Tor Tor \u003c0.2.9.15",
      "Tor Tor 0.3.1.*\uff0c\u003c0.3.1.10",
      "Tor Tor 0.3.2.*\uff0c\u003c0.3.2.10"
    ]
  },
  "referenceLink": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915\r\nhttps://trac.torproject.org/projects/tor/ticket/25074",
  "serverity": "\u4e2d",
  "submitTime": "2018-03-07",
  "title": "Tor\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-05901\uff09"
}

CVE-2018-0490 (GCVE-0-2018-0490)

Vulnerability from cvelistv5 – Published: 2018-03-05 15:00 – Updated: 2024-08-05 03:28

Summary

An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.

Severity

No CVSS data available.

CWE

NULL pointer dereference

Assigner

debian CNA under the mitre root

CNA scorecard – unranked: 2 records in the last 180 days, 10 needed details

References

3 references

URL	Tags
https://trac.torproject.org/projects/tor/ticket/25074	x_refsource_CONFIRM
https://www.debian.org/security/2018/dsa-4183	vendor-advisoryx_refsource_DEBIAN
https://blog.torproject.org/new-stable-tor-releas…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n/a	Tor	Affected: Tor

Date Public

2018-03-05 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:28:10.607Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://trac.torproject.org/projects/tor/ticket/25074"
          },
          {
            "name": "DSA-4183",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4183"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Tor",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Tor"
            }
          ]
        }
      ],
      "datePublic": "2018-03-05T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "NULL pointer dereference",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-04-29T09:57:01.000Z",
        "orgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
        "shortName": "debian"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://trac.torproject.org/projects/tor/ticket/25074"
        },
        {
          "name": "DSA-4183",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4183"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@debian.org",
          "ID": "CVE-2018-0490",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Tor",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Tor"
                          }
                        ]
                      }
                    }
                  ]
                },
                "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 Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "NULL pointer dereference"
                }
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://trac.torproject.org/projects/tor/ticket/25074",
              "refsource": "CONFIRM",
              "url": "https://trac.torproject.org/projects/tor/ticket/25074"
            },
            {
              "name": "DSA-4183",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2018/dsa-4183"
            },
            {
              "name": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915",
              "refsource": "CONFIRM",
              "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
    "assignerShortName": "debian",
    "cveId": "CVE-2018-0490",
    "datePublished": "2018-03-05T15:00:00.000Z",
    "dateReserved": "2017-11-27T00:00:00.000Z",
    "dateUpdated": "2024-08-05T03:28:10.607Z",
    "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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.

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