cnvd-2022-69201
Vulnerability from cnvd
Title: Linux kernel拒绝服务漏洞（CNVD-2022-69201）
Description:
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。
Linux kernel存在拒绝服务漏洞，该漏洞是由于net/core/sock.c中的sock_getsockopt（）函数中的“先用后读”缺陷造成的。本地经过身份验证的攻击者可利用此漏洞使系统崩溃或获取内部内核信息。
Severity: 中
Patch Name: Linux kernel拒绝服务漏洞（CNVD-2022-69201）的补丁
Patch Description:
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。
Linux kernel存在拒绝服务漏洞，该漏洞是由于net/core/sock.c中的sock_getsockopt（）函数中的“先用后读”缺陷造成的。本地经过身份验证的攻击者可利用此漏洞使系统崩溃或获取内部内核信息。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://lists.debian.org/debian-security-announce/2022/msg00063.html
Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-4203
Impacted products
| Name | Linux Linux kernel |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2021-4203",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-4203"
}
},
"description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8enet/core/sock.c\u4e2d\u7684sock_getsockopt\uff08\uff09\u51fd\u6570\u4e2d\u7684\u201c\u5148\u7528\u540e\u8bfb\u201d\u7f3a\u9677\u9020\u6210\u7684\u3002\u672c\u5730\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u4f7f\u7cfb\u7edf\u5d29\u6e83\u6216\u83b7\u53d6\u5185\u90e8\u5185\u6838\u4fe1\u606f\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://lists.debian.org/debian-security-announce/2022/msg00063.html",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2022-69201",
"openTime": "2022-10-17",
"patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8enet/core/sock.c\u4e2d\u7684sock_getsockopt\uff08\uff09\u51fd\u6570\u4e2d\u7684\u201c\u5148\u7528\u540e\u8bfb\u201d\u7f3a\u9677\u9020\u6210\u7684\u3002\u672c\u5730\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u4f7f\u7cfb\u7edf\u5d29\u6e83\u6216\u83b7\u53d6\u5185\u90e8\u5185\u6838\u4fe1\u606f\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": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2022-69201\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux Linux kernel"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-4203",
"serverity": "\u4e2d",
"submitTime": "2022-03-14",
"title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2022-69201\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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