cnvd-2021-91421
Vulnerability from cnvd
Title: Wireshark输入验证错误漏洞（CNVD-2021-91421）
Description:
Wireshark是Wireshark团队的一套网络数据包分析软件。该软件的功能是截取网络数据包，并显示出详细的数据以供分析。
Wireshark存在输入验证错误漏洞，该漏洞源于Modbus dissector中的验证不足，远程攻击者可以发送特制的数据包造成拒绝服务攻击。
Severity: 中
Patch Name: Wireshark输入验证错误漏洞（CNVD-2021-91421）的补丁
Patch Description:
Wireshark是Wireshark团队的一套网络数据包分析软件。该软件的功能是截取网络数据包，并显示出详细的数据以供分析。
Wireshark存在输入验证错误漏洞，该漏洞源于Modbus dissector中的验证不足，远程攻击者可以发送特制的数据包造成拒绝服务攻击。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://www.wireshark.org/security/wnpa-sec-2021-12.html。
Reference: https://www.cybersecurity-help.cz/vdb/SB2021111737
Impacted products
| Name | ['Wireshark Wireshark >=3.4.0，<=3.4.9', 'Wireshark Wireshark >=3.2.0，<=3.2.17'] |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2021-39921",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-39921"
}
},
"description": "Wireshark\u662fWireshark\u56e2\u961f\u7684\u4e00\u5957\u7f51\u7edc\u6570\u636e\u5305\u5206\u6790\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u7684\u529f\u80fd\u662f\u622a\u53d6\u7f51\u7edc\u6570\u636e\u5305\uff0c\u5e76\u663e\u793a\u51fa\u8be6\u7ec6\u7684\u6570\u636e\u4ee5\u4f9b\u5206\u6790\u3002\n\nWireshark\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eModbus dissector\u4e2d\u7684\u9a8c\u8bc1\u4e0d\u8db3\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u53d1\u9001\u7279\u5236\u7684\u6570\u636e\u5305\u9020\u6210\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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://www.wireshark.org/security/wnpa-sec-2021-12.html\u3002",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2021-91421",
"openTime": "2021-11-26",
"patchDescription": "Wireshark\u662fWireshark\u56e2\u961f\u7684\u4e00\u5957\u7f51\u7edc\u6570\u636e\u5305\u5206\u6790\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u7684\u529f\u80fd\u662f\u622a\u53d6\u7f51\u7edc\u6570\u636e\u5305\uff0c\u5e76\u663e\u793a\u51fa\u8be6\u7ec6\u7684\u6570\u636e\u4ee5\u4f9b\u5206\u6790\u3002\r\n\r\nWireshark\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eModbus dissector\u4e2d\u7684\u9a8c\u8bc1\u4e0d\u8db3\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u53d1\u9001\u7279\u5236\u7684\u6570\u636e\u5305\u9020\u6210\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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": "Wireshark\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-91421\uff09\u7684\u8865\u4e01",
"products": {
"product": [
"Wireshark Wireshark \u003e=3.4.0\uff0c\u003c=3.4.9",
"Wireshark Wireshark \u003e=3.2.0\uff0c\u003c=3.2.17"
]
},
"referenceLink": "https://www.cybersecurity-help.cz/vdb/SB2021111737",
"serverity": "\u4e2d",
"submitTime": "2021-11-21",
"title": "Wireshark\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-91421\uff09"
}
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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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