Vulnerability-Lookup

CNVD-2016-04684

Vulnerability from cnvd - Published: 2016-07-12

Title

Knot DNS拒绝服务漏洞

Description

Knot DNS是捷克互联网络信息中心（CZ.NIC）所开发的一款高性能的DNS服务器，它支持所有DNS系统的关键特性，例如区域转换、动态更新和DNS安全扩展（DNSSEC）等。 Knot DNS服务器中存在拒绝服务漏洞，该漏洞源于程序未能限制区域传输数据的大小。攻击者可利用该漏洞造成拒绝服务。

Severity

中

Patch Name

Knot DNS拒绝服务漏洞的补丁

Patch Description

Knot DNS是捷克互联网络信息中心（CZ.NIC）所开发的一款高性能的DNS服务器，它支持所有DNS系统的关键特性，例如区域转换、动态更新和DNS安全扩展（DNSSEC）等。 Knot DNS服务器中存在拒绝服务漏洞，该漏洞源于程序未能限制区域传输数据的大小。攻击者可利用该漏洞造成拒绝服务。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://www.knot-dns.cz/

Reference

http://www.openwall.com/lists/oss-security/2016/07/06/4

Impacted products

Name
CZ.NIC Knot DNS

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "91678"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-6171"
    }
  },
  "description": "Knot DNS\u662f\u6377\u514b\u4e92\u8054\u7f51\u7edc\u4fe1\u606f\u4e2d\u5fc3\uff08CZ.NIC\uff09\u6240\u5f00\u53d1\u7684\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684DNS\u670d\u52a1\u5668\uff0c\u5b83\u652f\u6301\u6240\u6709DNS\u7cfb\u7edf\u7684\u5173\u952e\u7279\u6027\uff0c\u4f8b\u5982\u533a\u57df\u8f6c\u6362\u3001\u52a8\u6001\u66f4\u65b0\u548cDNS\u5b89\u5168\u6269\u5c55\uff08DNSSEC\uff09\u7b49\u3002\r\n\r\nKnot DNS\u670d\u52a1\u5668\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9650\u5236\u533a\u57df\u4f20\u8f93\u6570\u636e\u7684\u5927\u5c0f\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "unknown",
  "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://www.knot-dns.cz/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-04684",
  "openTime": "2016-07-12",
  "patchDescription": "Knot DNS\u662f\u6377\u514b\u4e92\u8054\u7f51\u7edc\u4fe1\u606f\u4e2d\u5fc3\uff08CZ.NIC\uff09\u6240\u5f00\u53d1\u7684\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684DNS\u670d\u52a1\u5668\uff0c\u5b83\u652f\u6301\u6240\u6709DNS\u7cfb\u7edf\u7684\u5173\u952e\u7279\u6027\uff0c\u4f8b\u5982\u533a\u57df\u8f6c\u6362\u3001\u52a8\u6001\u66f4\u65b0\u548cDNS\u5b89\u5168\u6269\u5c55\uff08DNSSEC\uff09\u7b49\u3002\r\n\r\nKnot DNS\u670d\u52a1\u5668\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9650\u5236\u533a\u57df\u4f20\u8f93\u6570\u636e\u7684\u5927\u5c0f\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\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": "Knot DNS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "CZ.NIC Knot DNS"
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2016/07/06/4",
  "serverity": "\u4e2d",
  "submitTime": "2016-07-09",
  "title": "Knot DNS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2016-6171 (GCVE-0-2016-6171)

Vulnerability from cvelistv5 – Published: 2017-02-09 15:00 – Updated: 2024-08-06 01:22

Summary

Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR.

Severity ?

No CVSS data available.

CWE

Assigner

redhat

References

URL

Tags

	http://www.openwall.com/lists/oss-security/2016/07/06/3	mailing-listx_refsource_MLIST
	http://www.securityfocus.com/bid/91678	vdb-entryx_refsource_BID
	https://lists.dns-oarc.net/pipermail/dns-operatio…	mailing-listx_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2016/07/06/4	mailing-listx_refsource_MLIST
	https://gitlab.labs.nic.cz/labs/knot/blob/c546a70…	x_refsource_CONFIRM
	https://gitlab.labs.nic.cz/labs/knot/issues/464	x_refsource_CONFIRM
	https://github.com/sischkg/xfer-limit/blob/master…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T01:22:20.757Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20160706 Malicious primary DNS servers can crash secondaries",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/07/06/3"
          },
          {
            "name": "91678",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/91678"
          },
          {
            "name": "[dns-operations] 20160704 DNS activities in Japan",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html"
          },
          {
            "name": "[oss-security] 20160706 Re: Malicious primary DNS servers can crash secondaries",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/07/06/4"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://gitlab.labs.nic.cz/labs/knot/issues/464"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/sischkg/xfer-limit/blob/master/README.md"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-07-04T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-02-10T10:57:02",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "[oss-security] 20160706 Malicious primary DNS servers can crash secondaries",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/07/06/3"
        },
        {
          "name": "91678",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/91678"
        },
        {
          "name": "[dns-operations] 20160704 DNS activities in Japan",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html"
        },
        {
          "name": "[oss-security] 20160706 Re: Malicious primary DNS servers can crash secondaries",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/07/06/4"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://gitlab.labs.nic.cz/labs/knot/issues/464"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/sischkg/xfer-limit/blob/master/README.md"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2016-6171",
    "datePublished": "2017-02-09T15:00:00",
    "dateReserved": "2016-07-06T00:00:00",
    "dateUpdated": "2024-08-06T01:22:20.757Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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-2016-04684

CVE-2016-6171 (GCVE-0-2016-6171)

Tags

Sightings

Nomenclature