Vulnerability-Lookup

CNVD-2017-06010

Vulnerability from cnvd - Published: 2017-05-06

Title

Linux kernel CONFIG_STRICT_DEVMEM安全限制绕过漏洞

Description

Linux Kernel是一款流行的操作系统。 Linux kernel mm子系统未正确实现CONFIG_STRICT_DEVMEM保护机制，允许本地攻击者利用该漏洞绕过安全限制，未授权操作。

Severity

高

Patch Name

Linux kernel CONFIG_STRICT_DEVMEM安全限制绕过漏洞的补丁

Patch Description

Linux Kernel是一款流行的操作系统。 Linux kernel mm子系统未正确实现CONFIG_STRICT_DEVMEM保护机制，允许本地攻击者利用该漏洞绕过安全限制，未授权操作。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： https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94

Reference

https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94 https://nvd.nist.gov/vuln/detail/CVE-2017-7889

Impacted products

Name
Linux Kernel <=4.10.10

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-7889",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7889"
    }
  },
  "description": "Linux Kernel\u662f\u4e00\u6b3e\u6d41\u884c\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nLinux kernel mm\u5b50\u7cfb\u7edf\u672a\u6b63\u786e\u5b9e\u73b0CONFIG_STRICT_DEVMEM\u4fdd\u62a4\u673a\u5236\uff0c\u5141\u8bb8\u672c\u5730\u653b\u51fb\u8005\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u672a\u6388\u6743\u64cd\u4f5c\u3002",
  "discovererName": "Linux",
  "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\uff1a\r\nhttps://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-06010",
  "openTime": "2017-05-06",
  "patchDescription": "Linux Kernel\u662f\u4e00\u6b3e\u6d41\u884c\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nLinux kernel mm\u5b50\u7cfb\u7edf\u672a\u6b63\u786e\u5b9e\u73b0CONFIG_STRICT_DEVMEM\u4fdd\u62a4\u673a\u5236\uff0c\u5141\u8bb8\u672c\u5730\u653b\u51fb\u8005\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u672a\u6388\u6743\u64cd\u4f5c\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 CONFIG_STRICT_DEVMEM\u5b89\u5168\u9650\u5236\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c=4.10.10"
  },
  "referenceLink": "https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-7889",
  "serverity": "\u9ad8",
  "submitTime": "2017-04-20",
  "title": "Linux kernel CONFIG_STRICT_DEVMEM\u5b89\u5168\u9650\u5236\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2017-7889 (GCVE-0-2017-7889)

Vulnerability from cvelistv5 – Published: 2017-04-17 00:00 – Updated: 2024-08-05 16:19

Summary

The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

12 references

URL	Tags
https://github.com/torvalds/linux/commit/a4866aa8…	x_refsource_MISC
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_MISC
https://usn.ubuntu.com/3583-2/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2017:2669	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:1854	vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3583-1/	vendor-advisoryx_refsource_UBUNTU
http://www.debian.org/security/2017/dsa-3945	vendor-advisoryx_refsource_DEBIAN
http://www.securityfocus.com/bid/97690	vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2017:2077	vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2017/04/16/4	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2017:1842	vendor-advisoryx_refsource_REDHAT
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_CONFIRM

Date Public

2017-04-16 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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CNVD-2017-06010

CVE-2017-7889 (GCVE-0-2017-7889)

Tags

Sightings

Nomenclature

Related by attack behaviour