Vulnerability-Lookup

CNVD-2017-05409

Vulnerability from cnvd - Published: 2017-04-26

Title

Linux kernel本地拒绝服务漏洞（CNVD-2017-05409）

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 4.11.x版本至4.11-rc7版本的net/sched/act_api.c文件的packet action API实现过程的cookie功能存在安全漏洞，由于程序未能正确的处理tb nlattr数组。本地攻击者可借助tc filter add命令利用该漏洞造成拒绝服务（未初始化的内存访问和系统崩溃或挂起）。

Severity

高

Patch Name

Linux kernel本地拒绝服务漏洞（CNVD-2017-05409）的补丁

Patch Description

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: https://www.kernel.org/

Reference

http://marc.info/?l=linux-netdev&amp;m=149200742616349 http://seclists.org/oss-sec/2017/q2/98

Impacted products

Name
Linux Kernel 4.11.x，<=4.11-rc7

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-7979"
    }
  },
  "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 4.11.x\u7248\u672c\u81f34.11-rc7\u7248\u672c\u7684net/sched/act_api.c\u6587\u4ef6\u7684packet action API\u5b9e\u73b0\u8fc7\u7a0b\u7684cookie\u529f\u80fd\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u7531\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5904\u7406tb nlattr\u6570\u7ec4\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9tc filter add\u547d\u4ee4\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u672a\u521d\u59cb\u5316\u7684\u5185\u5b58\u8bbf\u95ee\u548c\u7cfb\u7edf\u5d29\u6e83\u6216\u6302\u8d77\uff09\u3002",
  "discovererName": "unknown",
  "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\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-05409",
  "openTime": "2017-04-26",
  "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 4.11.x\u7248\u672c\u81f34.11-rc7\u7248\u672c\u7684net/sched/act_api.c\u6587\u4ef6\u7684packet action API\u5b9e\u73b0\u8fc7\u7a0b\u7684cookie\u529f\u80fd\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u7531\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5904\u7406tb nlattr\u6570\u7ec4\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9tc filter add\u547d\u4ee4\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u672a\u521d\u59cb\u5316\u7684\u5185\u5b58\u8bbf\u95ee\u548c\u7cfb\u7edf\u5d29\u6e83\u6216\u6302\u8d77\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\u672c\u5730\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-05409\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel 4.11.x\uff0c\u003c=4.11-rc7"
  },
  "referenceLink": "http://marc.info/?l=linux-netdev\u0026amp;amp;m=149200742616349\r\nhttp://seclists.org/oss-sec/2017/q2/98",
  "serverity": "\u9ad8",
  "submitTime": "2017-04-21",
  "title": "Linux kernel\u672c\u5730\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-05409\uff09"
}

CVE-2017-7979 (GCVE-0-2017-7979)

Vulnerability from cvelistv5 – Published: 2017-04-19 23:00 – Updated: 2024-08-05 16:19

Summary

The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via "tc filter add" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

8 references

URL	Tags
http://marc.info/?l=linux-netdev&m=149251041420195	x_refsource_MISC
https://bugs.launchpad.net/ubuntu/+source/linux/+…	x_refsource_MISC
https://bugzilla.proxmox.com/show_bug.cgi?id=1351	x_refsource_MISC
http://marc.info/?l=linux-netdev&m=149200742616349	x_refsource_MISC
http://marc.info/?l=linux-netdev&m=149200746116365	x_refsource_MISC
http://marc.info/?l=linux-netdev&m=149251041420194	x_refsource_MISC
http://marc.info/?l=linux-netdev&m=149200746116366	x_refsource_MISC
http://www.securityfocus.com/bid/97969	vdb-entryx_refsource_BID

Date Public

2017-04-19 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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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.

Action not permitted

CNVD-2017-05409

CVE-2017-7979 (GCVE-0-2017-7979)

Tags

Sightings

Nomenclature

Related by attack behaviour