Vulnerability-Lookup

CNVD-2017-37739

Vulnerability from cnvd - Published: 2017-12-21

Title

Linux kernel lib/assoc_array.c文件拒绝服务漏洞

Description

Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 4.13.11之前的版本中的lib/assoc_array.c文件的’assoc_array_insert_into_terminal_node‘函数存在安全漏洞。本地攻击者可借助特制的应用程序利用该漏洞造成拒绝服务（空指针逆向引用和程序意外终止）。

Severity

中

Patch Name

Linux kernel lib/assoc_array.c文件拒绝服务漏洞的补丁

Patch Description

Formal description

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b

Reference

https://nvd.nist.gov/vuln/detail/CVE-2017-12193

Impacted products

Name
Linux Kernel <4.13.11

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2017-12193"
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  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.13.11\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684lib/assoc_array.c\u6587\u4ef6\u7684\u2019assoc_array_insert_into_terminal_node\u2018\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5e94\u7528\u7a0b\u5e8f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548c\u7a0b\u5e8f\u610f\u5916\u7ec8\u6b62\uff09\u3002",
  "discovererName": "Fan Wu (University of Hong Kong), Haoran Qiu (University of Hong Kong), Shixiong Zhao (University of Hong Kong), and Heming Cui (University of Hong Kong)",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b",
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  "number": "CNVD-2017-37739",
  "openTime": "2017-12-21",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.13.11\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684lib/assoc_array.c\u6587\u4ef6\u7684\u2019assoc_array_insert_into_terminal_node\u2018\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5e94\u7528\u7a0b\u5e8f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548c\u7a0b\u5e8f\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",
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-12193",
  "serverity": "\u4e2d",
  "submitTime": "2017-11-23",
  "title": "Linux kernel lib/assoc_array.c\u6587\u4ef6\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-12193 (GCVE-0-2017-12193)

Vulnerability from cvelistv5 – Published: 2017-11-22 18:00 – Updated: 2024-08-05 18:28

Summary

The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.

Severity

No CVSS data available.

CWE

CWE-476

Assigner

redhat CNA under the redhat root

CNA scorecard B 81/100 over 995 records in the last 180 days details

References

8 references

URL	Tags
http://www.kernel.org/pub/linux/kernel/v4.x/Chang…	x_refsource_CONFIRM
https://github.com/torvalds/linux/commit/ea678998…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/101678	vdb-entryx_refsource_BID
https://bugzilla.redhat.com/show_bug.cgi?id=1501215	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:0151	vendor-advisoryx_refsource_REDHAT
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_CONFIRM
https://usn.ubuntu.com/3698-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3698-2/	vendor-advisoryx_refsource_UBUNTU

Impacted products

1 product

Vendor	Product	Version
n/a	Linux kernel since 3.13 up to 4.14 (not including)	Affected: Linux kernel since 3.13 up to 4.14 (not including)

Date Public

2017-11-22 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.

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