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CNVD-2019-47010

Vulnerability from cnvd - Published: 2019-12-26

Title

Linux kernel内存错误引用漏洞（CNVD-2019-47010）

Description

Linux kernel是美国Linux基金会的发布的开源操作系统Linux所使用的内核。 Linux kernel 4.20.10及之前版本中的sockfs_setattr存在内存错误引用漏洞，该漏洞源于crypto/af_alg.c文件的‘af_alg_release()’函数未能将结构体成员设置成空值。攻击者可利用该漏洞在系统上执行任意代码。

Severity

高

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://www.kernel.org/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-8912

Impacted products

Name
Linux Linux kernel <=4.20.10

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JSON

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-8912"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel 4.20.10\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684sockfs_setattr\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8ecrypto/af_alg.c\u6587\u4ef6\u7684\u2018af_alg_release()\u2019\u51fd\u6570\u672a\u80fd\u5c06\u7ed3\u6784\u4f53\u6210\u5458\u8bbe\u7f6e\u6210\u7a7a\u503c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-47010",
  "openTime": "2019-12-26",
  "products": {
    "product": "Linux Linux kernel \u003c=4.20.10"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-8912",
  "serverity": "\u9ad8",
  "submitTime": "2019-02-19",
  "title": "Linux kernel\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2019-47010\uff09"
}

CVE-2019-8912 (GCVE-0-2019-8912)

Vulnerability from cvelistv5 – Published: 2019-02-18 18:00 – Updated: 2024-08-04 21:31

Summary

In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

8 references

URL	Tags
http://www.securityfocus.com/bid/107063	vdb-entryx_refsource_BID
http://patchwork.ozlabs.org/patch/1042902/	x_refsource_MISC
https://usn.ubuntu.com/3930-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3931-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3931-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3930-2/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://access.redhat.com/errata/RHSA-2020:0174	vendor-advisoryx_refsource_REDHAT

Date Public

2019-02-18 00:00

Show details on NVD website

JSON

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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.
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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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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.
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Action not permitted

CNVD-2019-47010

CVE-2019-8912 (GCVE-0-2019-8912)

Tags

Sightings

Nomenclature

Related by attack behaviour