cnvd - cnvd-2018-06543

cnvd-2018-06543

Vulnerability from cnvd

Title: ISC DHCP引用计数器溢出漏洞

Description:

ISC DHCP是一个实现用于连接到IP网络的动态主机配置协议的开源软件。

ISC DHCP存在引用计数器溢出漏洞。远程用户可通过向目标服务器发送大量数据触发引用计数器溢出，从而可导致目标dhcpd服务消耗所有可用内存并崩溃。

Severity: 高

Patch Name: ISC DHCP引用计数器溢出漏洞的补丁

Patch Description:

ISC DHCP是一个实现用于连接到IP网络的动态主机配置协议的开源软件。

ISC DHCP存在引用计数器溢出漏洞。远程用户可通过向目标服务器发送大量数据触发引用计数器溢出，从而可导致目标dhcpd服务消耗所有可用内存并崩溃。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:

厂商已发布漏洞修复程序，请及时关注更新： https://kb.isc.org/article/AA-01567/75/CVE-2018-5733

Reference: https://kb.isc.org/article/AA-01567/75/CVE-2018-5733

Impacted products

Name
['ISC DHCP 4.1.0 - 4.1-ESV-R15', 'ISC DHCP 4.2.0 - 4.2.8', 'ISC DHCP 4.3.0 - 4.3.6', 'ISC DHCP 4.4.0']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-5733"
    }
  },
  "description": "ISC DHCP\u662f\u4e00\u4e2a\u5b9e\u73b0\u7528\u4e8e\u8fde\u63a5\u5230IP\u7f51\u7edc\u7684\u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae\u7684\u5f00\u6e90\u8f6f\u4ef6\u3002\r\n\r\nISC DHCP\u5b58\u5728\u5f15\u7528\u8ba1\u6570\u5668\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u7528\u6237\u53ef\u901a\u8fc7\u5411\u76ee\u6807\u670d\u52a1\u5668\u53d1\u9001\u5927\u91cf\u6570\u636e\u89e6\u53d1\u5f15\u7528\u8ba1\u6570\u5668\u6ea2\u51fa\uff0c\u4ece\u800c\u53ef\u5bfc\u81f4\u76ee\u6807dhcpd\u670d\u52a1\u6d88\u8017\u6240\u6709\u53ef\u7528\u5185\u5b58\u5e76\u5d29\u6e83\u3002",
  "discovererName": "unknwon",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://kb.isc.org/article/AA-01567/75/CVE-2018-5733",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-06543",
  "openTime": "2018-03-28",
  "patchDescription": "ISC DHCP\u662f\u4e00\u4e2a\u5b9e\u73b0\u7528\u4e8e\u8fde\u63a5\u5230IP\u7f51\u7edc\u7684\u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae\u7684\u5f00\u6e90\u8f6f\u4ef6\u3002\r\n\r\nISC DHCP\u5b58\u5728\u5f15\u7528\u8ba1\u6570\u5668\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u7528\u6237\u53ef\u901a\u8fc7\u5411\u76ee\u6807\u670d\u52a1\u5668\u53d1\u9001\u5927\u91cf\u6570\u636e\u89e6\u53d1\u5f15\u7528\u8ba1\u6570\u5668\u6ea2\u51fa\uff0c\u4ece\u800c\u53ef\u5bfc\u81f4\u76ee\u6807dhcpd\u670d\u52a1\u6d88\u8017\u6240\u6709\u53ef\u7528\u5185\u5b58\u5e76\u5d29\u6e83\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": "ISC DHCP\u5f15\u7528\u8ba1\u6570\u5668\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "ISC DHCP 4.1.0 - 4.1-ESV-R15",
      "ISC DHCP 4.2.0 - 4.2.8",
      "ISC DHCP 4.3.0 - 4.3.6",
      "ISC DHCP 4.4.0"
    ]
  },
  "referenceLink": "https://kb.isc.org/article/AA-01567/75/CVE-2018-5733",
  "serverity": "\u9ad8",
  "submitTime": "2018-03-01",
  "title": "ISC DHCP\u5f15\u7528\u8ba1\u6570\u5668\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2018-5733 (GCVE-0-2018-5733)

Vulnerability from cvelistv5

Published

2019-01-16 20:00

Modified

2025-04-25 23:02

Severity ?

5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

Successful exploitation of this vulnerability may exhaust the memory available to dhcpd and/or cause it to crash, resulting in a denial of service to clients.

Summary

A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0.

References

▼	URL	Tags
	https://kb.isc.org/docs/aa-01567	x_refsource_CONFIRM
	https://access.redhat.com/errata/RHSA-2018:0469	vendor-advisory, x_refsource_REDHAT
	https://www.debian.org/security/2018/dsa-4133	vendor-advisory, x_refsource_DEBIAN
	https://usn.ubuntu.com/3586-2/	vendor-advisory, x_refsource_UBUNTU
	https://access.redhat.com/errata/RHSA-2018:0483	vendor-advisory, x_refsource_REDHAT
	https://usn.ubuntu.com/3586-1/	vendor-advisory, x_refsource_UBUNTU
	http://www.securityfocus.com/bid/103188	vdb-entry, x_refsource_BID
	http://www.securitytracker.com/id/1040437	vdb-entry, x_refsource_SECTRACK
	https://lists.debian.org/debian-lts-announce/2018/03/msg00015.html	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	ISC	ISC DHCP	Version: ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-04-25T23:02:52.084Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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              "x_transferred"
            ],
            "url": "https://kb.isc.org/docs/aa-01567"
          },
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            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:0469"
          },
          {
            "name": "DSA-4133",
            "tags": [
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              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4133"
          },
          {
            "name": "USN-3586-2",
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              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3586-2/"
          },
          {
            "name": "RHSA-2018:0483",
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              "x_refsource_REDHAT",
              "x_transferred"
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            "url": "https://access.redhat.com/errata/RHSA-2018:0483"
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              "vendor-advisory",
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          },
          {
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              "x_refsource_BID",
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            ],
            "url": "http://www.securityfocus.com/bid/103188"
          },
          {
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              "x_refsource_SECTRACK",
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            ],
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          },
          {
            "name": "[debian-lts-announce] 20180322 [SECURITY] [DLA 1313-1] isc-dhcp security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00015.html"
          },
          {
            "url": "https://security.netapp.com/advisory/ntap-20250425-0010/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ISC DHCP",
          "vendor": "ISC",
          "versions": [
            {
              "status": "affected",
              "version": "ISC DHCP 4.1.0 -\u003e 4.1-ESV-R15, 4.2.0 -\u003e 4.2.8, 4.3.0 -\u003e 4.3.6, 4.4.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "ISC would like to thank Felix Wilhelm, Google Security Team, for reporting this vulnerability."
        }
      ],
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        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
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            "confidentialityImpact": "NONE",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
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          }
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      ],
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      ],
      "providerMetadata": {
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            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:0469"
        },
        {
          "name": "DSA-4133",
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            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4133"
        },
        {
          "name": "USN-3586-2",
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            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
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          "tags": [
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          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:0483"
        },
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          "tags": [
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          ],
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        },
        {
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          ],
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        },
        {
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        }
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      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to the patched release most closely related to your current version of DHCP.\n\n    DHCP 4.1-ESV-R15-P1\n    DHCP 4.3.6-P1\n    DHCP 4.4.1"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
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      "x_legacyV4Record": {
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          "ASSIGNER": "security-officer@isc.org",
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        },
        "affects": {
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            "lang": "en",
            "value": "Upgrade to the patched release most closely related to your current version of DHCP.\n\n    DHCP 4.1-ESV-R15-P1\n    DHCP 4.3.6-P1\n    DHCP 4.4.1"
          }
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  "cveMetadata": {
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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