Vulnerability-Lookup

CNVD-2018-05756

Vulnerability from cnvd - Published: 2018-03-20

Title

fmtlib拒绝服务漏洞

Description

fmtlib是一款基于C++的开源格式化库。 fmtlib 4.1.0之前版本中的‘fmt::print()’库函数存在格式化字符串漏洞。攻击者可借助无效的格式化分类符利用该漏洞造成拒绝服务（内存破坏和无效写入）。

Severity

中

Patch Name

fmtlib拒绝服务漏洞的补丁

Patch Description

fmtlib是一款基于C++的开源格式化库。 fmtlib 4.1.0之前版本中的‘fmt::print()’库函数存在格式化字符串漏洞。攻击者可借助无效的格式化分类符利用该漏洞造成拒绝服务（内存破坏和无效写入）。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/fmtlib/fmt/commit/8cf30aa2be256eba07bb1cefb998c52326e846e7

Reference

https://github.com/fmtlib/fmt/commit/8cf30aa2be256eba07bb1cefb998c52326e846e7

Impacted products

Name
fmtlib fmtlib <4.1.0

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2018-1000052"
    }
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  "discovererName": "unknow",
  "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/fmtlib/fmt/commit/8cf30aa2be256eba07bb1cefb998c52326e846e7",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-05756",
  "openTime": "2018-03-20",
  "patchDescription": "fmtlib\u662f\u4e00\u6b3e\u57fa\u4e8eC++\u7684\u5f00\u6e90\u683c\u5f0f\u5316\u5e93\u3002\r\n\r\nfmtlib 4.1.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u2018fmt::print()\u2019\u5e93\u51fd\u6570\u5b58\u5728\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u65e0\u6548\u7684\u683c\u5f0f\u5316\u5206\u7c7b\u7b26\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u7834\u574f\u548c\u65e0\u6548\u5199\u5165\uff09\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": "fmtlib\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "fmtlib fmtlib \u003c4.1.0"
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  "referenceLink": "https://github.com/fmtlib/fmt/commit/8cf30aa2be256eba07bb1cefb998c52326e846e7",
  "serverity": "\u4e2d",
  "submitTime": "2018-02-26",
  "title": "fmtlib\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2018-1000052 (GCVE-0-2018-1000052)

Vulnerability from cvelistv5 – Published: 2018-02-09 23:00 – Updated: 2024-08-05 12:33

Summary

fmtlib version prior to version 4.1.0 (before commit 0555cea5fc0bf890afe0071a558e44625a34ba85) contains a Memory corruption (SIGSEGV), CWE-134 vulnerability in fmt::print() library function that can result in Denial of Service. This attack appear to be exploitable via Specifying an invalid format specifier in the fmt::print() function results in a SIGSEGV (memory corruption, invalid write). This vulnerability appears to have been fixed in after commit 8cf30aa2be256eba07bb1cefb998c52326e846e7.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/fmtlib/fmt/commit/8cf30aa2be25…	x_refsource_CONFIRM
https://github.com/fmtlib/fmt/issues/642	x_refsource_CONFIRM

Date Public

2018-02-01 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.