cnvd - cnvd-2022-02732

cnvd-2022-02732

Vulnerability from cnvd

Title: Realtek RTL8195AM缓冲区溢出漏洞

Description:

Realtek RTL8195AM是中国台湾瑞昱半导体（Realtek）公司的一款物联网微控制器。

Realtek RTL8195AM 2.0.10之前版本存在缓冲区溢出漏洞，该漏洞源于软件当中对于大长度文本缺少有效处理，导致堆栈缓冲区溢出，攻击者可利用该漏洞发送大尺寸的Authentication challenge文本，实现针对客户端的漏洞利用。

Severity: 高

Patch Name: Realtek RTL8195AM缓冲区溢出漏洞的补丁

Patch Description:

Realtek RTL8195AM是中国台湾瑞昱半导体（Realtek）公司的一款物联网微控制器。

Realtek RTL8195AM 2.0.10之前版本存在缓冲区溢出漏洞，该漏洞源于软件当中对于大长度文本缺少有效处理，导致堆栈缓冲区溢出，攻击者可利用该漏洞发送大尺寸的Authentication challenge文本，实现针对客户端的漏洞利用。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.amebaiot.com/en/security_bulletin/cve-2021-39306/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-39306

Impacted products

Name
Realtek RTL8195AM <2.0.10

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-39306"
    }
  },
  "description": "Realtek RTL8195AM\u662f\u4e2d\u56fd\u53f0\u6e7e\u745e\u6631\u534a\u5bfc\u4f53\uff08Realtek\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7269\u8054\u7f51\u5fae\u63a7\u5236\u5668\u3002\n\nRealtek RTL8195AM 2.0.10\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8f6f\u4ef6\u5f53\u4e2d\u5bf9\u4e8e\u5927\u957f\u5ea6\u6587\u672c\u7f3a\u5c11\u6709\u6548\u5904\u7406\uff0c\u5bfc\u81f4\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53d1\u9001\u5927\u5c3a\u5bf8\u7684Authentication challenge\u6587\u672c\uff0c\u5b9e\u73b0\u9488\u5bf9\u5ba2\u6237\u7aef\u7684\u6f0f\u6d1e\u5229\u7528\u3002",
  "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://www.amebaiot.com/en/security_bulletin/cve-2021-39306/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-02732",
  "openTime": "2022-01-12",
  "patchDescription": "Realtek RTL8195AM\u662f\u4e2d\u56fd\u53f0\u6e7e\u745e\u6631\u534a\u5bfc\u4f53\uff08Realtek\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7269\u8054\u7f51\u5fae\u63a7\u5236\u5668\u3002\r\n\r\nRealtek RTL8195AM 2.0.10\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8f6f\u4ef6\u5f53\u4e2d\u5bf9\u4e8e\u5927\u957f\u5ea6\u6587\u672c\u7f3a\u5c11\u6709\u6548\u5904\u7406\uff0c\u5bfc\u81f4\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53d1\u9001\u5927\u5c3a\u5bf8\u7684Authentication challenge\u6587\u672c\uff0c\u5b9e\u73b0\u9488\u5bf9\u5ba2\u6237\u7aef\u7684\u6f0f\u6d1e\u5229\u7528\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": "Realtek RTL8195AM\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Realtek RTL8195AM \u003c2.0.10"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-39306",
  "serverity": "\u9ad8",
  "submitTime": "2021-12-24",
  "title": "Realtek RTL8195AM\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-39306 (GCVE-0-2021-39306)

Vulnerability from cvelistv5

Published

2021-12-22 18:08

Modified

2024-08-04 02:06

Severity ?

CWE

Summary

A stack buffer overflow was discovered on Realtek RTL8195AM device before 2.0.10, it exists in the client code when an attacker sends a big size Authentication challenge text in WEP security.

References

▼	URL	Tags
	https://www.realtek.com	x_refsource_MISC
	https://www.amebaiot.com/en/security_bulletin/cve-2021-39306/	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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            ],
            "url": "https://www.realtek.com"
          },
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              "x_transferred"
            ],
            "url": "https://www.amebaiot.com/en/security_bulletin/cve-2021-39306/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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        "shortName": "mitre"
      },
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          "url": "https://www.realtek.com"
        },
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            "x_refsource_MISC"
          ],
          "url": "https://www.amebaiot.com/en/security_bulletin/cve-2021-39306/"
        }
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-39306",
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        },
        "affects": {
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              {
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                  "product_data": [
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        },
        "data_format": "MITRE",
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  "dataVersion": "5.1"
}

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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