Vulnerability-Lookup

CNVD-2017-30419

Vulnerability from cnvd - Published: 2017-10-17

Title

Linux kernel拒绝服务漏洞（CNVD-2017-30419）

Description

Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。 Linux kernel的Key Management子组件存在拒绝服务漏洞，当尝试在负密钥上发出KEYTCL_READ时，会导致空指针解引用。本地攻击者可利用该缺陷导致内核崩溃。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.kernel.org/

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1493435

Impacted products

Name
Linux Kernel

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-12192"
    }
  },
  "description": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\r\n\r\nLinux kernel\u7684Key Management\u5b50\u7ec4\u4ef6\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u5f53\u5c1d\u8bd5\u5728\u8d1f\u5bc6\u94a5\u4e0a\u53d1\u51faKEYTCL_READ\u65f6\uff0c\u4f1a\u5bfc\u81f4\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u7f3a\u9677\u5bfc\u81f4\u5185\u6838\u5d29\u6e83\u3002",
  "discovererName": "Andrej Nemec",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-30419",
  "openTime": "2017-10-17",
  "products": {
    "product": "Linux Kernel"
  },
  "referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=1493435",
  "serverity": "\u4e2d",
  "submitTime": "2017-10-12",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-30419\uff09"
}

CVE-2017-12192 (GCVE-0-2017-12192)

Vulnerability from cvelistv5 – Published: 2017-10-12 00:00 – Updated: 2024-08-05 18:28

Summary

The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.

Severity

No CVSS data available.

CWE

Assigner

redhat redhat root

References

8 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1493435	x_refsource_CONFIRM
https://usn.ubuntu.com/3583-2/	vendor-advisoryx_refsource_UBUNTU
http://www.kernel.org/pub/linux/kernel/v4.x/Chang…	x_refsource_CONFIRM
https://usn.ubuntu.com/3583-1/	vendor-advisoryx_refsource_UBUNTU
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://github.com/torvalds/linux/commit/37863c43…	x_refsource_CONFIRM
https://lkml.org/lkml/2017/9/18/764	x_refsource_MISC

Date Public

2017-09-18 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.

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

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.