Vulnerability-Lookup

CNVD-2021-30172

Vulnerability from cnvd - Published: 2021-04-22

Title

Valve Steam缓冲区溢出漏洞

Description

Valve Steam是美国Valve公司的一套游戏发行管理平台。该平台提供数字版权管理、多人游戏、流媒体和社交网络服务等功能。 Valve Steam 2021-04-10版本及之前版本存在缓冲区溢出漏洞，该漏洞源于Steam邀请会发生缓冲区溢出，经过身份验证的远程攻击者可利用该漏洞执行任意代码。

Severity

中

Patch Name

Valve Steam缓冲区溢出漏洞的补丁

Patch Description

Valve Steam是美国Valve公司的一套游戏发行管理平台。该平台提供数字版权管理、多人游戏、流媒体和社交网络服务等功能。 Valve Steam 2021-04-10版本及之前版本存在缓冲区溢出漏洞，该漏洞源于Steam邀请会发生缓冲区溢出，经过身份验证的远程攻击者可利用该漏洞执行任意代码。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，详情请关注厂商主页：https://store.steampowered.com/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-30481

Impacted products

Name
Valve Valve Steam <=2021-04-10

Show details on source website

JSON

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    "cve": {
      "cveNumber": "CVE-2021-30481",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-30481"
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  "description": "Valve Steam\u662f\u7f8e\u56fdValve\u516c\u53f8\u7684\u4e00\u5957\u6e38\u620f\u53d1\u884c\u7ba1\u7406\u5e73\u53f0\u3002\u8be5\u5e73\u53f0\u63d0\u4f9b\u6570\u5b57\u7248\u6743\u7ba1\u7406\u3001\u591a\u4eba\u6e38\u620f\u3001\u6d41\u5a92\u4f53\u548c\u793e\u4ea4\u7f51\u7edc\u670d\u52a1\u7b49\u529f\u80fd\u3002\n\nValve Steam 2021-04-10\u7248\u672c\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eSteam\u9080\u8bf7\u4f1a\u53d1\u751f\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1ahttps://store.steampowered.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-30172",
  "openTime": "2021-04-22",
  "patchDescription": "Valve Steam\u662f\u7f8e\u56fdValve\u516c\u53f8\u7684\u4e00\u5957\u6e38\u620f\u53d1\u884c\u7ba1\u7406\u5e73\u53f0\u3002\u8be5\u5e73\u53f0\u63d0\u4f9b\u6570\u5b57\u7248\u6743\u7ba1\u7406\u3001\u591a\u4eba\u6e38\u620f\u3001\u6d41\u5a92\u4f53\u548c\u793e\u4ea4\u7f51\u7edc\u670d\u52a1\u7b49\u529f\u80fd\u3002\r\n\r\nValve Steam 2021-04-10\u7248\u672c\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eSteam\u9080\u8bf7\u4f1a\u53d1\u751f\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\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": "Valve Steam\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Valve Valve Steam \u003c=2021-04-10"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-30481",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-22",
  "title": "Valve Steam\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-30481 (GCVE-0-2021-30481)

Vulnerability from cvelistv5 – Published: 2021-04-10 18:31 – Updated: 2025-11-03 05:30

Summary

Valve Steam before 2021-04-17, when a Source engine game is installed, allows remote authenticated users to execute arbitrary code because of a buffer overflow that occurs for a Steam invite after one click.

Severity

8 (High)


                        
                          CVSS:3.1/AC:H/AV:N/A:H/C:H/I:H/PR:L/S:C/UI:R

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://twitter.com/the_secret_club/status/138086…
https://www.youtube.com/watch?v=rNQn--9xR1Q
https://news.ycombinator.com/item?id=26762170
https://twitter.com/floesen_/status/1337107178096881666

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.

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.