cnvd-2016-02793
Vulnerability from cnvd
Title: Linux kernel拒绝服务漏洞（CNVD-2016-02793）
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 4.5.2及之前版本的drivers/input/tablet/gtco.c文件中的‘gtco_probe’函数存在拒绝服务漏洞。的攻击者可借助USB设备描述符中特制的端点值利用该漏洞造成拒绝服务（空指针逆向引用和系统崩溃）。
Severity: 低
Patch Name: Linux kernel拒绝服务漏洞（CNVD-2016-02793）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 4.5.2及之前版本的drivers/input/tablet/gtco.c文件中的‘gtco_probe’函数存在拒绝服务漏洞。攻击者可借助USB设备描述符中特制的端点值利用该漏洞造成拒绝服务（空指针逆向引用和系统崩溃）。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:
目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=162f98dea487206d9ab79fc12ed64700667a894d
Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1317017
Impacted products
| Name | Linux Kernel <=4.5.2 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2016-2187"
}
},
"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 4.5.2\u53ca\u4e4b\u524d\u7248\u672c\u7684drivers/input/tablet/gtco.c\u6587\u4ef6\u4e2d\u7684\u2018gtco_probe\u2019\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u7684\u653b\u51fb\u8005\u53ef\u501f\u52a9USB\u8bbe\u5907\u63cf\u8ff0\u7b26\u4e2d\u7279\u5236\u7684\u7aef\u70b9\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548c\u7cfb\u7edf\u5d29\u6e83\uff09\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\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=162f98dea487206d9ab79fc12ed64700667a894d",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2016-02793",
"openTime": "2016-05-06",
"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 4.5.2\u53ca\u4e4b\u524d\u7248\u672c\u7684drivers/input/tablet/gtco.c\u6587\u4ef6\u4e2d\u7684\u2018gtco_probe\u2019\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9USB\u8bbe\u5907\u63cf\u8ff0\u7b26\u4e2d\u7279\u5236\u7684\u7aef\u70b9\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548c\u7cfb\u7edf\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-02793\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux Kernel \u003c=4.5.2"
},
"referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=1317017",
"serverity": "\u4f4e",
"submitTime": "2016-05-03",
"title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-02793\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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