cnvd-2017-04739
Vulnerability from cnvd
Title: Linux kernel packet_set_ring函数本地拒绝服务漏洞
Description:
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。
Linux kernel 4.10.6及之前的版本中的net/packet/af_packet.c文件的‘packet_set_ring’函数存在安全漏洞，该漏洞源于程序未能正确的验证block-size数据。本地攻击者可借助特制的系统调用利用该漏洞造成拒绝服务（溢出）。
Severity: 高
Patch Name: Linux kernel packet_set_ring函数本地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。
Linux kernel 4.10.6及之前的版本中的net/packet/af_packet.c文件的‘packet_set_ring’函数存在安全漏洞，该漏洞源于程序未能正确的验证block-size数据。本地攻击者可借助特制的系统调用利用该漏洞造成拒绝服务（溢出）。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这个安全问题，请到厂商的主页下载： https://patchwork.ozlabs.org/patch/744811/
Reference: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7308
Impacted products
| Name | Linux Kernel <=4.10.6 |
|---|
{
"bids": {
"bid": {
"bidNumber": "97234"
}
},
"cves": {
"cve": {
"cveNumber": "CVE-2017-7308"
}
},
"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 4.10.6\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684net/packet/af_packet.c\u6587\u4ef6\u7684\u2018packet_set_ring\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u9a8c\u8bc1block-size\u6570\u636e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u7cfb\u7edf\u8c03\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u6ea2\u51fa\uff09\u3002",
"discovererName": "Andrey Konovalov",
"formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://patchwork.ozlabs.org/patch/744811/",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2017-04739",
"openTime": "2017-04-20",
"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 4.10.6\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684net/packet/af_packet.c\u6587\u4ef6\u7684\u2018packet_set_ring\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u9a8c\u8bc1block-size\u6570\u636e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u7cfb\u7edf\u8c03\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u6ea2\u51fa\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 packet_set_ring\u51fd\u6570\u672c\u5730\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "Linux Kernel \u003c=4.10.6"
},
"referenceLink": "http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7308",
"serverity": "\u9ad8",
"submitTime": "2017-03-31",
"title": "Linux kernel packet_set_ring\u51fd\u6570\u672c\u5730\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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