Vulnerability-Lookup

CNVD-2018-20456

Vulnerability from cnvd - Published: 2018-10-09

Title

QPDF libqpdf/QPDFWriter.cc拒绝服务漏洞

Description

QPDF是一个能够对PDF进行结构化的命令行程序。该程序可以加密PDF文件，分析或更改PDF文件的内部结构。 QPDF 8.2.1版本中的libqpdf/QPDFWriter.cc文件中的‘QPDFWriter::unparseObject’和‘QPDFWriter::unparseChild’函数存在安全漏洞。远程攻击者可借助特制的PDF文件利用该漏洞造成拒绝服务。

Severity

中

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法：

https://github.com/qpdf/qpdf

Reference

https://github.com/qpdf/qpdf/issues/243

Impacted products

Name
QPDF QPDF 8.2.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-18020"
    }
  },
  "description": "QPDF\u662f\u4e00\u4e2a\u80fd\u591f\u5bf9PDF\u8fdb\u884c\u7ed3\u6784\u5316\u7684\u547d\u4ee4\u884c\u7a0b\u5e8f\u3002\u8be5\u7a0b\u5e8f\u53ef\u4ee5\u52a0\u5bc6PDF\u6587\u4ef6\uff0c\u5206\u6790\u6216\u66f4\u6539PDF\u6587\u4ef6\u7684\u5185\u90e8\u7ed3\u6784\u3002\r\n\r\nQPDF 8.2.1\u7248\u672c\u4e2d\u7684libqpdf/QPDFWriter.cc\u6587\u4ef6\u4e2d\u7684\u2018QPDFWriter::unparseObject\u2019\u548c\u2018QPDFWriter::unparseChild\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684PDF\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "unKnow",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\n\r\nhttps://github.com/qpdf/qpdf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-20456",
  "openTime": "2018-10-09",
  "products": {
    "product": "QPDF QPDF 8.2.1"
  },
  "referenceLink": "https://github.com/qpdf/qpdf/issues/243",
  "serverity": "\u4e2d",
  "submitTime": "2018-10-09",
  "title": "QPDF libqpdf/QPDFWriter.cc\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2018-18020 (GCVE-0-2018-18020)

Vulnerability from cvelistv5 – Published: 2018-10-06 00:00 – Updated: 2024-08-05 11:01

Summary

In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/qpdf/qpdf/issues/243
	https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T11:01:14.763Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/qpdf/qpdf/issues/243"
          },
          {
            "name": "[debian-lts-announce] 20230829 [SECURITY] [DLA 3548-1] qpdf security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00037.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-10-06T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-08-30T00:06:48.855731",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/qpdf/qpdf/issues/243"
        },
        {
          "name": "[debian-lts-announce] 20230829 [SECURITY] [DLA 3548-1] qpdf security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00037.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-18020",
    "datePublished": "2018-10-06T00:00:00",
    "dateReserved": "2018-10-06T00:00:00",
    "dateUpdated": "2024-08-05T11:01:14.763Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-2018-20456

CVE-2018-18020 (GCVE-0-2018-18020)

Tags

Sightings

Nomenclature