Vulnerability-Lookup

CNVD-2018-26648

Vulnerability from cnvd - Published: 2018-12-26

Title

libdoc缓冲区越界读取漏洞（CNVD-2018-26648）

Description

libdoc是一款用于从MicroSoft doc文件中提取文本的C语言库。 libdoc2017-10-23及之前版本中的reader.c文件的‘process_file’函数存在堆缓冲区越界读取漏洞，攻击者可借助特制的文件利用该漏洞造成拒绝服务（应用程序崩溃）。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://github.com/uvoteam/libdoc

Reference

https://github.com/uvoteam/libdoc/issues/2

Impacted products

Name
libdoc libdoc <=2017-10-23

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-20451"
    }
  },
  "description": "libdoc\u662f\u4e00\u6b3e\u7528\u4e8e\u4eceMicroSoft doc\u6587\u4ef6\u4e2d\u63d0\u53d6\u6587\u672c\u7684C\u8bed\u8a00\u5e93\u3002\n\nlibdoc2017-10-23\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684reader.c\u6587\u4ef6\u7684\u2018process_file\u2019\u51fd\u6570\u5b58\u5728\u5806\u7f13\u51b2\u533a\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002",
  "discovererName": "Zhao Liang",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://github.com/uvoteam/libdoc",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-26648",
  "openTime": "2018-12-26",
  "products": {
    "product": "libdoc libdoc \u003c=2017-10-23"
  },
  "referenceLink": "https://github.com/uvoteam/libdoc/issues/2",
  "serverity": "\u4e2d",
  "submitTime": "2018-12-26",
  "title": "libdoc\u7f13\u51b2\u533a\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\uff08CNVD-2018-26648\uff09"
}

CVE-2018-20451 (GCVE-0-2018-20451)

Vulnerability from cvelistv5 – Published: 2018-12-25 17:00 – Updated: 2024-09-16 22:20

Summary

The process_file function in reader.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.

Severity

No CVSS data available.

CWE

Assigner

mitre

References

1 reference

URL	Tags
https://github.com/uvoteam/libdoc/issues/2	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-05T11:58:19.097Z",
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          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/uvoteam/libdoc/issues/2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "n/a",
          "versions": [
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      ],
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        "dateUpdated": "2018-12-25T17:00:00.000Z",
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        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/uvoteam/libdoc/issues/2"
        }
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      "x_legacyV4Record": {
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          "ID": "CVE-2018-20451",
          "STATE": "PUBLIC"
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "datePublished": "2018-12-25T17:00:00.000Z",
    "dateReserved": "2018-12-25T00:00:00.000Z",
    "dateUpdated": "2024-09-16T22:20:42.470Z",
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  },
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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.

Action not permitted

CNVD-2018-26648

CVE-2018-20451 (GCVE-0-2018-20451)

Tags

Sightings

Nomenclature