cnvd - cnvd-2020-27294

CNVD-2020-27294

Vulnerability from cnvd - Published: 2020-05-09

Title

多款NETGEAR产品缓冲区溢出漏洞（CNVD-2020-27294）

Description

NETGEAR DGN2200等都是美国网件（NETGEAR）公司的一款无线路由器。多款NETGEAR产品中存在缓冲区溢出漏洞，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作，攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

Severity

中

Patch Name

多款NETGEAR产品缓冲区溢出漏洞（CNVD-2020-27294）的补丁

Patch Description

NETGEAR DGN2200等都是美国网件（NETGEAR）公司的一款无线路由器。多款NETGEAR产品中存在缓冲区溢出漏洞，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作，攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。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

厂商已发布了漏洞修复程序，请及时关注更新： https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-20740

Impacted products

Name
['NETGEAR DGN2200v4 <1.0.0.110', 'NETGEAR DGND2200Bv4 <1.0.0.109', 'NETGEAR R7300 <1.0.0.70', 'NETGEAR R8300 <1.0.2.130', 'NETGEAR R8500 <1.0.2.130']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-20740"
    }
  },
  "description": "NETGEAR DGN2200\u7b49\u90fd\u662f\u7f8e\u56fd\u7f51\u4ef6\uff08NETGEAR\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u7ebf\u8def\u7531\u5668\u3002\n\n\u591a\u6b3eNETGEAR\u4ea7\u54c1\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u7b49\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-27294",
  "openTime": "2020-05-09",
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  "patchName": "\u591a\u6b3eNETGEAR\u4ea7\u54c1\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-27294\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "NETGEAR DGN2200v4 \u003c1.0.0.110",
      "NETGEAR DGND2200Bv4 \u003c1.0.0.109",
      "NETGEAR R7300 \u003c1.0.0.70",
      "NETGEAR R8300 \u003c1.0.2.130",
      "NETGEAR R8500 \u003c1.0.2.130"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-20740",
  "serverity": "\u4e2d",
  "submitTime": "2020-04-17",
  "title": "\u591a\u6b3eNETGEAR\u4ea7\u54c1\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-27294\uff09"
}

CVE-2019-20740 (GCVE-0-2019-20740)

Vulnerability from cvelistv5 – Published: 2020-04-16 19:19 – Updated: 2024-08-05 02:53

Summary

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.

Severity ?

6.3 (Medium)


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

CWE

Assigner

mitre

References

URL

Tags

https://kb.netgear.com/000060976/Security-Advisor…

x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

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          }
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        }
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            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
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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-2020-27294

CVE-2019-20740 (GCVE-0-2019-20740)

Tags

Sightings

Nomenclature