cnvd-2016-03350
Vulnerability from cnvd
Title: Linux kernel内存错误引用漏洞（CNVD-2016-03350）
Description:
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。
Linux kernel 4.4版本的ppp_unregister_channel中存在内存错误引用漏洞，该漏洞源于程序删除网络命名空间时，其中的ppp_async通道仍然处于注册状态。攻击者可利用该漏洞造成拒绝服务。
Severity: 高
Patch Name: Linux kernel内存错误引用漏洞（CNVD-2016-03350）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。
Linux kernel 4.4版本的ppp_unregister_channel中存在内存错误引用漏洞，该漏洞源于程序删除网络命名空间时，其中的ppp_async通道仍然处于注册状态。攻击者可利用该漏洞造成拒绝服务。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:
目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1f461dcdd296eecedaffffc6bae2bfa90bd7eb89
Reference: http://www.openwall.com/lists/oss-security/2016/05/15/3
Impacted products
| Name | Linux Kernel 4.4 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2016-4805"
}
},
"description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.4\u7248\u672c\u7684ppp_unregister_channel\u4e2d\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5220\u9664\u7f51\u7edc\u547d\u540d\u7a7a\u95f4\u65f6\uff0c\u5176\u4e2d\u7684ppp_async\u901a\u9053\u4ecd\u7136\u5904\u4e8e\u6ce8\u518c\u72b6\u6001\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
"discovererName": "Linux",
"formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1f461dcdd296eecedaffffc6bae2bfa90bd7eb89",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2016-03350",
"openTime": "2016-05-19",
"patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.4\u7248\u672c\u7684ppp_unregister_channel\u4e2d\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5220\u9664\u7f51\u7edc\u547d\u540d\u7a7a\u95f4\u65f6\uff0c\u5176\u4e2d\u7684ppp_async\u901a\u9053\u4ecd\u7136\u5904\u4e8e\u6ce8\u518c\u72b6\u6001\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\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-2016-03350\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux Kernel 4.4"
},
"referenceLink": "http://www.openwall.com/lists/oss-security/2016/05/15/3",
"serverity": "\u9ad8",
"submitTime": "2016-05-17",
"title": "Linux kernel\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2016-03350\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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