CNVD-2015-07654

Vulnerability from cnvd - Published: 2015-11-19
VLAI Severity ?
Title
Linux kernel输入验证漏洞
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 4.2.6及之前版本的security/keys/gc.c文件中的‘key_gc_unused_keys’函数存在安全漏洞。本地攻击者可借助特制的keyctl命令利用该漏洞造成拒绝服务（OOPS）。
Severity
低
Patch Name
Linux kernel输入验证漏洞的补丁
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 4.2.6及之前版本的security/keys/gc.c文件中的‘key_gc_unused_keys’函数存在安全漏洞。本地攻击者可借助特制的keyctl命令利用该漏洞造成拒绝服务（OOPS）。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，详情请关注厂商主页： https://www.kernel.org/

Reference
https://github.com/torvalds/linux/commit/f05819df10d7b09f6d1eb6f8534a8f68e5a4fe61 https://bugzilla.redhat.com/show_bug.cgi?id=1272172
Impacted products
Name
Linux Kernel <=4.2.26
Show details on source website
To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-7872"
    }
  },
  "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 4.2.6\u53ca\u4e4b\u524d\u7248\u672c\u7684security/keys/gc.c\u6587\u4ef6\u4e2d\u7684\u2018key_gc_unused_keys\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684keyctl\u547d\u4ee4\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08OOPS\uff09\u3002",
  "discovererName": "David Howells",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07654",
  "openTime": "2015-11-19",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\nLinux kernel 4.2.6\u53ca\u4e4b\u524d\u7248\u672c\u7684security/keys/gc.c\u6587\u4ef6\u4e2d\u7684\u2018key_gc_unused_keys\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684keyctl\u547d\u4ee4\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08OOPS\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\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c=4.2.26"
  },
  "referenceLink": "https://github.com/torvalds/linux/commit/f05819df10d7b09f6d1eb6f8534a8f68e5a4fe61\r\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1272172",
  "serverity": "\u4f4e",
  "submitTime": "2015-11-18",
  "title": "Linux kernel\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e"
}


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Sightings

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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