Vulnerability-Lookup

CNVD-2017-10818

Vulnerability from cnvd - Published: 2017-06-23

Title

Linux Kernel拒绝服务漏洞（CNVD-2017-10818）

Description

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux kernel 4.7.4之前的版本中的ext4和f2fs filesystem encryption support的fs/crypto/policy.c文件的‘fscrypt_process_policy’函数存在安全漏洞，该漏洞源于程序缺少身份认证检查。攻击者可利用该漏洞分配加密策略，造成拒绝服务。

Severity

中

Patch Name

Linux Kernel拒绝服务漏洞（CNVD-2017-10818）的补丁

Patch Description

Formal description

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://github.com/torvalds/linux/commit/163ae1c6ad6299b19e22b4a35d5ab24a89791a98

Reference

http://www.securityfocus.com/bid/97404 https://nvd.nist.gov/vuln/detail/CVE-2016-10318

Impacted products

Name
Linux kernel <4.7.4

Show details on source website

JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "97404"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-10318",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10318"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002NFSv4 implementation\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u534f\u8bae\u3002\r\n\r\nLinux kernel 4.7.4\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684ext4\u548cf2fs filesystem encryption support\u7684fs/crypto/policy.c\u6587\u4ef6\u7684\u2018fscrypt_process_policy\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u7f3a\u5c11\u8eab\u4efd\u8ba4\u8bc1\u68c0\u67e5\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5206\u914d\u52a0\u5bc6\u7b56\u7565\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Linux",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://github.com/torvalds/linux/commit/163ae1c6ad6299b19e22b4a35d5ab24a89791a98",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-10818",
  "openTime": "2017-06-23",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002NFSv4 implementation\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u534f\u8bae\u3002\r\n\r\nLinux kernel 4.7.4\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684ext4\u548cf2fs filesystem encryption support\u7684fs/crypto/policy.c\u6587\u4ef6\u7684\u2018fscrypt_process_policy\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u7f3a\u5c11\u8eab\u4efd\u8ba4\u8bc1\u68c0\u67e5\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5206\u914d\u52a0\u5bc6\u7b56\u7565\uff0c\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-10818\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003c4.7.4"
  },
  "referenceLink": "http://www.securityfocus.com/bid/97404\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-10318",
  "serverity": "\u4e2d",
  "submitTime": "2017-05-24",
  "title": "Linux Kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-10818\uff09"
}

CVE-2016-10318 (GCVE-0-2016-10318)

Vulnerability from cvelistv5 – Published: 2017-04-04 16:00 – Updated: 2024-08-06 03:14

Summary

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
http://www.kernel.org/pub/linux/kernel/v4.x/Chang…	x_refsource_CONFIRM
https://github.com/torvalds/linux/commit/163ae1c6…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/97404	vdb-entryx_refsource_BID
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_CONFIRM

Date Public

2017-04-04 00:00

Show details on NVD website

JSON

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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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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