cnvd-2017-35379
Vulnerability from cnvd
Title: Linux kernel本地权限提升漏洞（CNVD-2017-35379）
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 4.13.11之前的版本中的net/xfrm/xfrm_user.c文件的XFRM dump策略的实现存在安全漏洞。本地攻击者可利用该漏洞获取权限或造成拒绝服务（释放后重用）。
Severity: 高
Patch Name: Linux kernel本地权限提升漏洞（CNVD-2017-35379）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 4.13.11之前的版本中的net/xfrm/xfrm_user.c文件的XFRM dump策略的实现存在安全漏洞。本地攻击者可利用该漏洞获取权限或造成拒绝服务（释放后重用）。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://github.com/torvalds/linux/commit/1137b5e2529a8f5ca8ee709288ecba3e68044df2
Reference: http://seclists.org/fulldisclosure/2017/Nov/40
Impacted products
| Name | Linux Kernel <4.13.11 |
|---|
{
"bids": {
"bid": {
"bidNumber": "101954"
}
},
"cves": {
"cve": {
"cveNumber": "CVE-2017-16939"
}
},
"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 \r\n\r\nLinux kernel 4.13.11\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684net/xfrm/xfrm_user.c\u6587\u4ef6\u7684XFRM dump\u7b56\u7565\u7684\u5b9e\u73b0\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u6743\u9650\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u91ca\u653e\u540e\u91cd\u7528\uff09\u3002",
"discovererName": "ohamed Ghannam",
"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://github.com/torvalds/linux/commit/1137b5e2529a8f5ca8ee709288ecba3e68044df2",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2017-35379",
"openTime": "2017-11-29",
"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 4.13.11\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684net/xfrm/xfrm_user.c\u6587\u4ef6\u7684XFRM dump\u7b56\u7565\u7684\u5b9e\u73b0\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u6743\u9650\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u91ca\u653e\u540e\u91cd\u7528\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\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2017-35379\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux Kernel \u003c4.13.11"
},
"referenceLink": "http://seclists.org/fulldisclosure/2017/Nov/40",
"serverity": "\u9ad8",
"submitTime": "2017-10-20",
"title": "Linux kernel\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2017-35379\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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