cnvd - cnvd-2022-08380

CNVD-2022-08380

Vulnerability from cnvd - Published: 2022-02-05

Title

mruby缓冲区溢出漏洞（CNVD-2022-08380）

Description

mruby是一款Ruby语言的轻量级实现。 mruby中存在安全漏洞，该漏洞源于mruby v3.0.0 的 mrb_vm_exec() 中的不受信任的指针取消引用可能导致分段错误或应用程序崩溃。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

mruby缓冲区溢出漏洞（CNVD-2022-08380）的补丁

Patch Description

mruby是一款Ruby语言的轻量级实现。 mruby中存在安全漏洞，该漏洞源于mruby v3.0.0 的 mrb_vm_exec() 中的不受信任的指针取消引用可能导致分段错误或应用程序崩溃。目前没有详细的漏洞细节提供。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/mruby/mruby/issues/5613

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-46020

Impacted products

Name
mruby mruby 3.0.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-46020"
    }
  },
  "description": "mruby\u662f\u4e00\u6b3eRuby\u8bed\u8a00\u7684\u8f7b\u91cf\u7ea7\u5b9e\u73b0\u3002\n\nmruby\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8emruby v3.0.0 \u7684 mrb_vm_exec() \u4e2d\u7684\u4e0d\u53d7\u4fe1\u4efb\u7684\u6307\u9488\u53d6\u6d88\u5f15\u7528\u53ef\u80fd\u5bfc\u81f4\u5206\u6bb5\u9519\u8bef\u6216\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\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://github.com/mruby/mruby/issues/5613",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-08380",
  "openTime": "2022-02-05",
  "patchDescription": "mruby\u662f\u4e00\u6b3eRuby\u8bed\u8a00\u7684\u8f7b\u91cf\u7ea7\u5b9e\u73b0\u3002\r\n\r\nmruby\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8emruby v3.0.0 \u7684 mrb_vm_exec() \u4e2d\u7684\u4e0d\u53d7\u4fe1\u4efb\u7684\u6307\u9488\u53d6\u6d88\u5f15\u7528\u53ef\u80fd\u5bfc\u81f4\u5206\u6bb5\u9519\u8bef\u6216\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\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": "mruby\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2022-08380\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "mruby mruby 3.0.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-46020",
  "serverity": "\u4e2d",
  "submitTime": "2022-01-17",
  "title": "mruby\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2022-08380\uff09"
}

CVE-2021-46020 (GCVE-0-2021-46020)

Vulnerability from cvelistv5 – Published: 2022-01-14 20:01 – Updated: 2024-08-04 04:54

Summary

An untrusted pointer dereference in mrb_vm_exec() of mruby v3.0.0 can lead to a segmentation fault or application crash.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://github.com/mruby/mruby/issues/5613

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T04:54:31.220Z",
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          }
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Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2022-08380

CVE-2021-46020 (GCVE-0-2021-46020)

Tags

Sightings

Nomenclature