cnvd-2021-70093
Vulnerability from cnvd
Title: Linux kernel存在未明漏洞（CNVD-2021-70093）
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存在安全漏洞，该漏洞源于qrtr_endpoint_post() 强制读取Linux内核的无效内存地址。攻击者可利用该漏洞触发拒绝服务或获取敏感信息。
Severity: 中
Patch Name: Linux kernel存在未明漏洞（CNVD-2021-70093）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存在安全漏洞，该漏洞源于qrtr_endpoint_post() 强制读取Linux内核的无效内存地址。攻击者可利用该漏洞触发拒绝服务或获取敏感信息。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:
目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://vigilance.fr/vulnerability/Linux-kernel-out-of-bounds-memory-reading-via-qrtr-endpoint-post-36254
Reference: https://exchange.xforce.ibmcloud.com/vulnerabilities/208200
Impacted products
| Name | Linux Linux kernel |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2021-3743"
}
},
"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\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eqrtr_endpoint_post() \u5f3a\u5236\u8bfb\u53d6Linux\u5185\u6838\u7684\u65e0\u6548\u5185\u5b58\u5730\u5740\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u89e6\u53d1\u62d2\u7edd\u670d\u52a1\u6216\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u3002",
"formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://vigilance.fr/vulnerability/Linux-kernel-out-of-bounds-memory-reading-via-qrtr-endpoint-post-36254",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2021-70093",
"openTime": "2021-09-11",
"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\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eqrtr_endpoint_post() \u5f3a\u5236\u8bfb\u53d6Linux\u5185\u6838\u7684\u65e0\u6548\u5185\u5b58\u5730\u5740\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u89e6\u53d1\u62d2\u7edd\u670d\u52a1\u6216\u83b7\u53d6\u654f\u611f\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\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-70093\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux Linux kernel"
},
"referenceLink": "https://exchange.xforce.ibmcloud.com/vulnerabilities/208200",
"serverity": "\u4e2d",
"submitTime": "2021-08-31",
"title": "Linux kernel\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-70093\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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