CNVD-2017-04815

Vulnerability from cnvd - Published: 2017-04-20
VLAI
Title
Linux kernel ULL空指针引用权限提升漏洞
Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。KEYS是其中的一个返回匹配模式的所有键的子系统。 Linux kernel 3.18之前的版本中的KEYS子系统存在安全漏洞。本地攻击者可利用该漏洞造成拒绝服务（空指针逆向引用和系统崩溃）。
Severity
高
Patch Name
Linux kernel ULL空指针引用权限提升漏洞的补丁
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。KEYS是其中的一个返回匹配模式的所有键的子系统。 Linux kernel 3.18之前的版本中的KEYS子系统存在安全漏洞。本地攻击者可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=c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81

Reference
https://github.com/torvalds/linux/commit/c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81
Impacted products
Name
Linux Kernel < 3.18
Show details on source website
To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "97258"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-2647",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2647"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002KEYS\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u8fd4\u56de\u5339\u914d\u6a21\u5f0f\u7684\u6240\u6709\u952e\u7684\u5b50\u7cfb\u7edf\u3002\r\n\r\nLinux kernel 3.18\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684KEYS\u5b50\u7cfb\u7edf\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\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": "Igor Redko (Virtuozzo), Andrey Ryabinin (Virtuozzo)",
  "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:\r\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-04815",
  "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\u3002KEYS\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u8fd4\u56de\u5339\u914d\u6a21\u5f0f\u7684\u6240\u6709\u952e\u7684\u5b50\u7cfb\u7edf\u3002\r\n\r\nLinux kernel 3.18\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684KEYS\u5b50\u7cfb\u7edf\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\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 ULL\u7a7a\u6307\u9488\u5f15\u7528\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c 3.18"
  },
  "referenceLink": "https://github.com/torvalds/linux/commit/c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81",
  "serverity": "\u9ad8",
  "submitTime": "2017-04-01",
  "title": "Linux kernel ULL\u7a7a\u6307\u9488\u5f15\u7528\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.