cnvd-2018-03260
Vulnerability from cnvd
Title: Linux kernel内存错误引用漏洞（CNVD-2018-03260）
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中的网络名称空间代码存在内存错误引用漏洞，该漏洞源于net/core/net_namespace.c文件的‘get_net_ns_by_id()’函数在etns_ids idr中发现对等网络之后没有检测net::count的值。本地攻击者可利用该漏洞造成拒绝服务（内核内存破坏和崩溃）。
Severity: 中
Patch Name: Linux kernel内存错误引用漏洞（CNVD-2018-03260）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中的网络名称空间代码存在内存错误引用漏洞，该漏洞源于net/core/net_namespace.c文件的‘get_net_ns_by_id()’函数在etns_ids idr中发现对等网络之后没有检测net::count的值。本地攻击者可利用该漏洞造成拒绝服务（内核内存破坏和崩溃）。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://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11
Reference: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0
Impacted products
| Name | Linux kernel <4.14.11 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2017-15129",
"cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15129"
}
},
"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\u4e2d\u7684\u7f51\u7edc\u540d\u79f0\u7a7a\u95f4\u4ee3\u7801\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8enet/core/net_namespace.c\u6587\u4ef6\u7684\u2018get_net_ns_by_id()\u2019\u51fd\u6570\u5728etns_ids idr\u4e2d\u53d1\u73b0\u5bf9\u7b49\u7f51\u7edc\u4e4b\u540e\u6ca1\u6709\u68c0\u6d4bnet::count\u7684\u503c\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u6838\u5185\u5b58\u7834\u574f\u548c\u5d29\u6e83\uff09\u3002",
"discovererName": "Eric W. Biederman",
"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://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2018-03260",
"openTime": "2018-02-12",
"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\u4e2d\u7684\u7f51\u7edc\u540d\u79f0\u7a7a\u95f4\u4ee3\u7801\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8enet/core/net_namespace.c\u6587\u4ef6\u7684\u2018get_net_ns_by_id()\u2019\u51fd\u6570\u5728etns_ids idr\u4e2d\u53d1\u73b0\u5bf9\u7b49\u7f51\u7edc\u4e4b\u540e\u6ca1\u6709\u68c0\u6d4bnet::count\u7684\u503c\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u6838\u5185\u5b58\u7834\u574f\u548c\u5d29\u6e83\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\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2018-03260\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux kernel \u003c4.14.11"
},
"referenceLink": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0",
"serverity": "\u4e2d",
"submitTime": "2018-01-11",
"title": "Linux kernel\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2018-03260\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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