Vulnerability-Lookup

CNVD-2017-16025

Vulnerability from cnvd - Published: 2017-07-24

Title

Linux Kernel NFSv4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。NFSv4 server是其中的一个分布式文件系统服务器。 Linux kernel 4.11.3之前的版本中的NFSv4服务器存在安全漏洞，该漏洞源于程序未能正确的验证布局类型。远程攻击者可利用该漏洞造成拒绝服务和系统锁死（意外终止）。

Severity

高

Patch Name

Linux Kernel NFSv4拒绝服务漏洞的补丁

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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/nfsd?h=v4.12-rc7&id=f961e3f2acae94b727380c0b74e2d3954d0edf79

Reference

http://seclists.org/oss-sec/2017/q2/615

Impacted products

Name
Linux kernel <4.11.3

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "99298"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-8797"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002NFSv4 server\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u670d\u52a1\u5668\u3002\r\n\r\nLinux kernel 4.11.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684NFSv4\u670d\u52a1\u5668\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u9a8c\u8bc1\u5e03\u5c40\u7c7b\u578b\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u548c\u7cfb\u7edf\u9501\u6b7b\uff08\u610f\u5916\u7ec8\u6b62\uff09\u3002",
  "discovererName": "Jani Tuovila from Synopsys Ltd",
  "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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/nfsd?h=v4.12-rc7\u0026id=f961e3f2acae94b727380c0b74e2d3954d0edf79",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-16025",
  "openTime": "2017-07-24",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002NFSv4 server\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u670d\u52a1\u5668\u3002\r\n\r\nLinux kernel 4.11.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684NFSv4\u670d\u52a1\u5668\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u9a8c\u8bc1\u5e03\u5c40\u7c7b\u578b\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u548c\u7cfb\u7edf\u9501\u6b7b\uff08\u610f\u5916\u7ec8\u6b62\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 NFSv4\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003c4.11.3"
  },
  "referenceLink": "http://seclists.org/oss-sec/2017/q2/615",
  "serverity": "\u9ad8",
  "submitTime": "2017-06-29",
  "title": "Linux Kernel NFSv4\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-8797 (GCVE-0-2017-8797)

Vulnerability from cvelistv5 – Published: 2017-07-02 17:00 – Updated: 2024-08-05 16:48

Summary

The NFSv4 server in the Linux kernel before 4.11.3 does not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a UDP packet from a remote attacker. This type value is uninitialized upon encountering certain error conditions. This value is used as an array index for dereferencing, which leads to an OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

13 references

URL	Tags
http://www.openwall.com/lists/oss-security/2017/06/27/5	x_refsource_MISC
http://www.securitytracker.com/id/1038790	vdb-entryx_refsource_SECTRACK
https://access.redhat.com/errata/RHSA-2017:2437	vendor-advisoryx_refsource_REDHAT
https://github.com/torvalds/linux/commit/f961e3f2…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2017:2669	vendor-advisoryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=1466329	x_refsource_MISC
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_MISC
https://github.com/torvalds/linux/commit/b550a32e…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2017:2077	vendor-advisoryx_refsource_REDHAT
http://www.kernel.org/pub/linux/kernel/v4.x/Chang…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2017:1842	vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/99298	vdb-entryx_refsource_BID
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_MISC

Date Public

2017-07-02 00:00

Show details on NVD website

JSON

To clipboard

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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.

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.

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Action not permitted

CNVD-2017-16025

CVE-2017-8797 (GCVE-0-2017-8797)

Tags

Sightings

Nomenclature

Related by attack behaviour