Vulnerability-Lookup

CNVD-2021-28783

Vulnerability from cnvd - Published: 2021-04-16

Title

iproute2资源管理错误漏洞

Description

iproute2是一款用于控制和监视Linux内核中路由、网络接口和隧道等的实用程序。 iproute2 5.1.0之前版本中的ip/ipnetns.c文件的'get_netnsid_from_name'函数存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。目前没有详细的漏洞细节提供。

Severity

低

Patch Name

iproute2资源管理错误漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-20795

Impacted products

Name
iproute2 iproute2 <5.1.0

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-20795"
    }
  },
  "description": "iproute2\u662f\u4e00\u6b3e\u7528\u4e8e\u63a7\u5236\u548c\u76d1\u89c6Linux\u5185\u6838\u4e2d\u8def\u7531\u3001\u7f51\u7edc\u63a5\u53e3\u548c\u96a7\u9053\u7b49\u7684\u5b9e\u7528\u7a0b\u5e8f\u3002\n\niproute2 5.1.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684ip/ipnetns.c\u6587\u4ef6\u7684\u0027get_netnsid_from_name\u0027\u51fd\u6570\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5bf9\u7cfb\u7edf\u8d44\u6e90\uff08\u5982\u5185\u5b58\u3001\u78c1\u76d8\u7a7a\u95f4\u3001\u6587\u4ef6\u7b49\uff09\u7684\u7ba1\u7406\u4e0d\u5f53\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-28783",
  "openTime": "2021-04-16",
  "patchDescription": "iproute2\u662f\u4e00\u6b3e\u7528\u4e8e\u63a7\u5236\u548c\u76d1\u89c6Linux\u5185\u6838\u4e2d\u8def\u7531\u3001\u7f51\u7edc\u63a5\u53e3\u548c\u96a7\u9053\u7b49\u7684\u5b9e\u7528\u7a0b\u5e8f\u3002\r\n\r\niproute2 5.1.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684ip/ipnetns.c\u6587\u4ef6\u7684\u0027get_netnsid_from_name\u0027\u51fd\u6570\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5bf9\u7cfb\u7edf\u8d44\u6e90\uff08\u5982\u5185\u5b58\u3001\u78c1\u76d8\u7a7a\u95f4\u3001\u6587\u4ef6\u7b49\uff09\u7684\u7ba1\u7406\u4e0d\u5f53\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "iproute2\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "iproute2 iproute2 \u003c5.1.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-20795",
  "serverity": "\u4f4e",
  "submitTime": "2020-05-11",
  "title": "iproute2\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2019-20795 (GCVE-0-2019-20795)

Vulnerability from cvelistv5 – Published: 2020-05-09 20:16 – Updated: 2024-08-05 02:53

Summary

iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://git.kernel.org/pub/scm/network/iproute2/i…	x_refsource_CONFIRM
https://bugzilla.suse.com/show_bug.cgi?id=1171452	x_refsource_MISC
https://usn.ubuntu.com/4357-1/	vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/202008-06	vendor-advisoryx_refsource_GENTOO

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.
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-2021-28783

CVE-2019-20795 (GCVE-0-2019-20795)

Tags

Sightings

Nomenclature

Related by attack behaviour