Vulnerability-Lookup

CNVD-2018-06542

Vulnerability from cnvd - Published: 2018-03-28

Title

ISC DHCP缓冲区溢出漏洞

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存在缓冲区溢出漏洞。攻击者可通过远程服务器返回特制响应，从而可触发DHCP选项处理发生缓冲区溢出，从而可导致目标dhclient崩溃。

Severity

高

Patch Name

ISC DHCP缓冲区溢出漏洞的补丁

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存在缓冲区溢出漏洞。攻击者可通过远程服务器返回特制响应，从而可触发DHCP选项处理发生缓冲区溢出，从而可导致目标dhclient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-01565/75/CVE-2018-5732

Reference

https://kb.isc.org/article/AA-01565/75/CVE-2018-5732

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-2018-5732"
    }
  },
  "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\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8fdc\u7a0b\u670d\u52a1\u5668\u8fd4\u56de\u7279\u5236\u54cd\u5e94\uff0c\u4ece\u800c\u53ef\u89e6\u53d1DHCP\u9009\u9879\u5904\u7406\u53d1\u751f\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u4ece\u800c\u53ef\u5bfc\u81f4\u76ee\u6807dhclient\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-01565/75/CVE-2018-5732",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-06542",
  "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\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8fdc\u7a0b\u670d\u52a1\u5668\u8fd4\u56de\u7279\u5236\u54cd\u5e94\uff0c\u4ece\u800c\u53ef\u89e6\u53d1DHCP\u9009\u9879\u5904\u7406\u53d1\u751f\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u4ece\u800c\u53ef\u5bfc\u81f4\u76ee\u6807dhclient\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\u7f13\u51b2\u533a\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-01565/75/CVE-2018-5732",
  "serverity": "\u9ad8",
  "submitTime": "2018-03-01",
  "title": "ISC DHCP\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2018-5732 (GCVE-0-2018-5732)

Vulnerability from cvelistv5 – Published: 2019-10-09 14:17 – Updated: 2024-09-16 18:19

Title

A specially constructed response from a malicious server can cause a buffer overflow in dhclient

Summary

Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0

Severity

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

Affected versions of dhclient should crash due to an out-of-bounds memory access if they receive and process a triggering response packet. However, buffer overflow outcomes can vary by operating system, and outcomes such as remote code execution may be possible in some circumstances. Where they are present, operating system mitigation strategies such as address space layout randomization (ASLR) should make it difficult to leverage this vulnerability to achieve remote code execution, but we cannot rule it out as impossible. The safest course is to patch dhclient so that the buffer overflow cannot occur.

Assigner

isc mitre root

References

1 reference

URL	Tags
https://kb.isc.org/docs/aa-01565	x_refsource_CONFIRM

Impacted products

1 product

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

Date Public

2018-02-28 00:00

Credits

ISC would like to thank Felix Wilhelm, Google Security Team, for reporting this vulnerability.

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JSON

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          "versions": [
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        }
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      "metrics": [
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            "confidentialityImpact": "NONE",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
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      "solutions": [
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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.

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CNVD-2018-06542

CVE-2018-5732 (GCVE-0-2018-5732)

Tags

Sightings

Nomenclature

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