cnvd-2022-68615
Vulnerability from cnvd
Title: Linux kernel存在未明漏洞（CNVD-2022-68615）
Description:
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。KVM是其中的一个基于内核的虚拟机。
Linux kernel存在安全漏洞，该漏洞源于Linux内核中 fs/nfs/dir.c中发现了一个问题。 如果应用程序设置了O_DIRECTORY标志，并尝试打开常规文件，nfs_atomic_open() 将执行常规查找。 如果找到常规文件，则应该发生 ENOTDIR，但服务器会在文件描述符中返回未初始化的数据。目前没有详细漏洞细节提供。
Severity: 低
Patch Name: Linux kernel存在未明漏洞（CNVD-2022-68615）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。KVM是其中的一个基于内核的虚拟机。
Linux kernel存在安全漏洞，该漏洞源于Linux内核中 fs/nfs/dir.c中发现了一个问题。 如果应用程序设置了O_DIRECTORY标志，并尝试打开常规文件，nfs_atomic_open() 将执行常规查找。 如果找到常规文件，则应该发生 ENOTDIR，但服务器会在文件描述符中返回未初始化的数据。目前没有详细漏洞细节提供。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： http://shibboleth.net/community/advisories/
Reference: https://nvd.nist.gov/vuln/detail/CVE-2022-24448
Impacted products
| Name | Linux Kernel <5.16.5 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2022-24448",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-24448"
}
},
"description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002KVM\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u57fa\u4e8e\u5185\u6838\u7684\u865a\u62df\u673a\u3002\n\nLinux kernel\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eLinux\u5185\u6838\u4e2d fs/nfs/dir.c\u4e2d\u53d1\u73b0\u4e86\u4e00\u4e2a\u95ee\u9898\u3002 \u5982\u679c\u5e94\u7528\u7a0b\u5e8f\u8bbe\u7f6e\u4e86O_DIRECTORY\u6807\u5fd7\uff0c\u5e76\u5c1d\u8bd5\u6253\u5f00\u5e38\u89c4\u6587\u4ef6\uff0cnfs_atomic_open() \u5c06\u6267\u884c\u5e38\u89c4\u67e5\u627e\u3002 \u5982\u679c\u627e\u5230\u5e38\u89c4\u6587\u4ef6\uff0c\u5219\u5e94\u8be5\u53d1\u751f ENOTDIR\uff0c\u4f46\u670d\u52a1\u5668\u4f1a\u5728\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e2d\u8fd4\u56de\u672a\u521d\u59cb\u5316\u7684\u6570\u636e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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\nhttp://shibboleth.net/community/advisories/",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2022-68615",
"openTime": "2022-10-13",
"patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002KVM\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u57fa\u4e8e\u5185\u6838\u7684\u865a\u62df\u673a\u3002\r\n\r\nLinux kernel\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eLinux\u5185\u6838\u4e2d fs/nfs/dir.c\u4e2d\u53d1\u73b0\u4e86\u4e00\u4e2a\u95ee\u9898\u3002 \u5982\u679c\u5e94\u7528\u7a0b\u5e8f\u8bbe\u7f6e\u4e86O_DIRECTORY\u6807\u5fd7\uff0c\u5e76\u5c1d\u8bd5\u6253\u5f00\u5e38\u89c4\u6587\u4ef6\uff0cnfs_atomic_open() \u5c06\u6267\u884c\u5e38\u89c4\u67e5\u627e\u3002 \u5982\u679c\u627e\u5230\u5e38\u89c4\u6587\u4ef6\uff0c\u5219\u5e94\u8be5\u53d1\u751f ENOTDIR\uff0c\u4f46\u670d\u52a1\u5668\u4f1a\u5728\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e2d\u8fd4\u56de\u672a\u521d\u59cb\u5316\u7684\u6570\u636e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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-2022-68615\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux Kernel \u003c5.16.5"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2022-24448",
"serverity": "\u4f4e",
"submitTime": "2022-02-11",
"title": "Linux kernel\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2022-68615\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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