cnvd-2017-16025
Vulnerability from cnvd
Title: Linux Kernel NFSv4拒绝服务漏洞
Description:
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。NFSv4 server是其中的一个分布式文件系统服务器。
Linux kernel 4.11.3之前的版本中的NFSv4服务器存在安全漏洞，该漏洞源于程序未能正确的验证布局类型。远程攻击者可利用该漏洞造成拒绝服务和系统锁死（意外终止）。
Severity: 高
Patch Name: Linux Kernel NFSv4拒绝服务漏洞的补丁
Patch Description:
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。NFSv4 server是其中的一个分布式文件系统服务器。
Linux kernel 4.11.3之前的版本中的NFSv4服务器存在安全漏洞，该漏洞源于程序未能正确的验证布局类型。远程攻击者可利用该漏洞造成拒绝服务和系统锁死（意外终止）。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:
用户可参考如下厂商提供的安全补丁以修复该漏洞： https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/nfsd?h=v4.12-rc7&id=f961e3f2acae94b727380c0b74e2d3954d0edf79
Reference: http://seclists.org/oss-sec/2017/q2/615
Impacted products
| Name | Linux kernel <4.11.3 |
|---|
{
"bids": {
"bid": {
"bidNumber": "99298"
}
},
"cves": {
"cve": {
"cveNumber": "CVE-2017-8797"
}
},
"description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002NFSv4 server\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u670d\u52a1\u5668\u3002\r\n\r\nLinux kernel 4.11.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684NFSv4\u670d\u52a1\u5668\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u9a8c\u8bc1\u5e03\u5c40\u7c7b\u578b\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u548c\u7cfb\u7edf\u9501\u6b7b\uff08\u610f\u5916\u7ec8\u6b62\uff09\u3002",
"discovererName": "Jani Tuovila from Synopsys Ltd",
"formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/nfsd?h=v4.12-rc7\u0026id=f961e3f2acae94b727380c0b74e2d3954d0edf79",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2017-16025",
"openTime": "2017-07-24",
"patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002NFSv4 server\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u670d\u52a1\u5668\u3002\r\n\r\nLinux kernel 4.11.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684NFSv4\u670d\u52a1\u5668\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u9a8c\u8bc1\u5e03\u5c40\u7c7b\u578b\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u548c\u7cfb\u7edf\u9501\u6b7b\uff08\u610f\u5916\u7ec8\u6b62\uff09\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 NFSv4\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "Linux kernel \u003c4.11.3"
},
"referenceLink": "http://seclists.org/oss-sec/2017/q2/615",
"serverity": "\u9ad8",
"submitTime": "2017-06-29",
"title": "Linux Kernel NFSv4\u62d2\u7edd\u670d\u52a1\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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