cnvd-2020-52183
Vulnerability from cnvd
Title: Linux kernel权限控制漏洞
Description:
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。
Linux kernel 5.8.9中存在权限控制漏洞。该漏洞源于driver /block/ rbdc中的rbd块设备驱动程序使用了不完整的权限检查来访问rbd设备。攻击者可利用该漏洞提升权限。
Severity: 高
Patch Name: Linux kernel权限控制漏洞的补丁
Patch Description:
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。
Linux kernel 5.8.9 中存在权限控制漏洞。该漏洞源于driver /block/ rbdc中的rbd块设备驱动程序使用了不完整的权限检查来访问rbd设备。攻击者可利用该漏洞提升权限。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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f44d04e696feaf13d192d942c4f14ad2e117065a
Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-25284
Impacted products
| Name | Linux Linux kernel 5.8.9 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2020-25284",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25284"
}
},
"description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel 5.8.9\u4e2d\u5b58\u5728\u6743\u9650\u63a7\u5236\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8edriver /block/ rbdc\u4e2d\u7684rbd\u5757\u8bbe\u5907\u9a71\u52a8\u7a0b\u5e8f\u4f7f\u7528\u4e86\u4e0d\u5b8c\u6574\u7684\u6743\u9650\u68c0\u67e5\u6765\u8bbf\u95eerbd\u8bbe\u5907\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f44d04e696feaf13d192d942c4f14ad2e117065a",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2020-52183",
"openTime": "2020-09-16",
"patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 5.8.9 \u4e2d\u5b58\u5728\u6743\u9650\u63a7\u5236\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8edriver /block/ rbdc\u4e2d\u7684rbd\u5757\u8bbe\u5907\u9a71\u52a8\u7a0b\u5e8f\u4f7f\u7528\u4e86\u4e0d\u5b8c\u6574\u7684\u6743\u9650\u68c0\u67e5\u6765\u8bbf\u95eerbd\u8bbe\u5907\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\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\u6743\u9650\u63a7\u5236\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "Linux Linux kernel 5.8.9"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-25284",
"serverity": "\u9ad8",
"submitTime": "2020-09-15",
"title": "Linux kernel\u6743\u9650\u63a7\u5236\u6f0f\u6d1e"
}
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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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