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CVE-2021-21899 (GCVE-0-2021-21899)
Vulnerability from cvelistv5
Published
2021-11-19 00:00
      Modified
2024-08-03 18:30
      
          Severity ?
        
        
      
          VLAI Severity ?
        
        
          EPSS score ?
        
        CWE
          - CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
 
Summary
A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
            
          
        References
          Impacted products
        
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  }
}
  fkie_cve-2021-21899
Vulnerability from fkie_nvd
Published
2021-11-19 19:15
    Modified
2024-11-21 05:49
    
          Severity ?
        
        
    Summary
A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
    References
      | URL | Tags | ||
|---|---|---|---|
| talos-cna@cisco.com | https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html | Mailing List, Third Party Advisory | |
| talos-cna@cisco.com | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/ | ||
| talos-cna@cisco.com | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/ | ||
| talos-cna@cisco.com | https://security.gentoo.org/glsa/202305-26 | ||
| talos-cna@cisco.com | https://talosintelligence.com/vulnerability_reports/TALOS-2021-1350 | Exploit, Third Party Advisory | |
| talos-cna@cisco.com | https://www.debian.org/security/2022/dsa-5077 | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html | Mailing List, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/ | ||
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/ | ||
| af854a3a-2127-422b-91ae-364da2661108 | https://security.gentoo.org/glsa/202305-26 | ||
| af854a3a-2127-422b-91ae-364da2661108 | https://talosintelligence.com/vulnerability_reports/TALOS-2021-1350 | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.debian.org/security/2022/dsa-5077 | Third Party Advisory | 
Impacted products
      | Vendor | Product | Version | |
|---|---|---|---|
| librecad | libdxfrw | 2.2.0-rc2-19-ge02f3580 | |
| fedoraproject | fedora | 34 | |
| fedoraproject | fedora | 35 | |
| debian | debian_linux | 9.0 | |
| debian | debian_linux | 10.0 | |
| debian | debian_linux | 11.0 | 
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    }
  ],
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://security.gentoo.org/glsa/202305-26"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1350"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.debian.org/security/2022/dsa-5077"
    }
  ],
  "sourceIdentifier": "talos-cna@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "talos-cna@cisco.com",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Secondary"
    }
  ]
}
  opensuse-su-2022:0067-1
Vulnerability from csaf_opensuse
Published
2022-03-02 21:21
    Modified
2022-03-02 21:21
    Summary
Security update for libdxfrw, librecad
    Notes
Title of the patch
Security update for libdxfrw, librecad
    Description of the patch
This update for libdxfrw, librecad fixes the following issues:
- Update to version 1.0.1+git.20220109:
  * fixed ambiguous error for DRW_Dimension::parseDwg()
  * fixed enless while()-loop for pre 2004 versions
  * dwgReader::readDwgObjects() stop reading after 1st error
  * dwgReader::readDwgEntities() stop reading after 1st error
  * replace ENTRY_PARSE macro with template method
  * remove unused DRW_Class::parseCode() method
  * protect vector<>.reserve() calls
  * Added NULL check for hatch code 93
  * Fix bounds check in DRW_LWPolyline
  * fix, check maxClassNum for valid value
  * fixed wrong 2010+ check for 64-bit size
  * Set compiler warnings on by default, because makes harder for bugs to go undetected. 	modified:   CMakeLists.txt
  * Fixed fall through and other warnings (#54)
  * fix 'Vertex ID' printout
- Update to version 1.0.1+git.20211110:
  * fixed heap use after free vulnerability CVE-2021-21900 (boo#1192938)
  * minor improvements to dwg2dxf, formatting and message output on success
  * fixed heap buffer overflow vulnerability CVE-2021-21899 (boo#1192937)
  * dwg2dxf - enable debug output of libdxfrw by command line switch
  * fixed out-of-bounds write vulnerability CVE-2021-21898 (boo#1192936)
  * fixed please note section formatting
  * updated README.md for LibreCAD_3 branch and sf.net successor
  * fixed LibreCAD 2 issue #1371, read failed with binary DXF
  * Use ununordered_map instead of map
  * manual merge changes from LibreCAD2
  * and much more
- Update to version 1.0.1+git.20200429:
  * Fix includes install dir
  * Export target as libdxfrw::libdxfrw to keep consistency with Conan packages
  * Add archive destination in install
  * Install DXFRW::dxfrw target
  * Remove duplicate target properties
  * Remove version from pkg-config file
  * Let CMake handle C++11 compiler definition
  * Change minimal required CMake version to 3.0
  * cmake: add doc target
  * README.md: fix typo
  * cmake: generate and install pkgconfig
  * cmake: add one for dwg2dxf
  * cmake: set library VERSIONs
  * cmake: use GNUInstallDirs
- Update to version 0.6.3+git.20190501:
  * Add build status and update example link
  * Add Travis-CI script
  * [#10] Fix compilation on GCC
  * Fix bugs with .dwg import of TEXT and MTEXT entities
  * This was unnecessary
  * Link libdxfrw against libstdc++
  * Return an error when the file ends prematurely
  * Add version getter
  * Fix polyline 2d/3d write
  * Initialize return buffers in GetRawChar8 et al.
- update to 2.2.0-rc3
  * major release
  * DWG imports are more reliable now
  * and a lot more of bugfixes and improvements
    Patchnames
openSUSE-2022-67
    Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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        "title": "Title of the patch"
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        "title": "Description of the patch"
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}
  opensuse-su-2024:11697-1
Vulnerability from csaf_opensuse
Published
2024-06-15 00:00
    Modified
2024-06-15 00:00
    Summary
libdxfrw-devel-1.0.1+git.20211110-1.1 on GA media
    Notes
Title of the patch
libdxfrw-devel-1.0.1+git.20211110-1.1 on GA media
    Description of the patch
These are all security issues fixed in the libdxfrw-devel-1.0.1+git.20211110-1.1 package on the GA media of openSUSE Tumbleweed.
    Patchnames
openSUSE-Tumbleweed-2024-11697
    Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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    "csaf_version": "2.0",
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        "title": "Terms of use"
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          "summary": "CVE-2021-21899",
          "url": "https://www.suse.com/security/cve/CVE-2021-21899"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1192937 for CVE-2021-21899",
          "url": "https://bugzilla.suse.com/1192937"
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      ],
      "remediations": [
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          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
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      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
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            "openSUSE Tumbleweed:libdxfrw-devel-1.0.1+git.20211110-1.1.ppc64le",
            "openSUSE Tumbleweed:libdxfrw-devel-1.0.1+git.20211110-1.1.s390x",
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            "openSUSE Tumbleweed:libdxfrw-tools-1.0.1+git.20211110-1.1.aarch64",
            "openSUSE Tumbleweed:libdxfrw-tools-1.0.1+git.20211110-1.1.ppc64le",
            "openSUSE Tumbleweed:libdxfrw-tools-1.0.1+git.20211110-1.1.s390x",
            "openSUSE Tumbleweed:libdxfrw-tools-1.0.1+git.20211110-1.1.x86_64",
            "openSUSE Tumbleweed:libdxfrw1-1.0.1+git.20211110-1.1.aarch64",
            "openSUSE Tumbleweed:libdxfrw1-1.0.1+git.20211110-1.1.ppc64le",
            "openSUSE Tumbleweed:libdxfrw1-1.0.1+git.20211110-1.1.s390x",
            "openSUSE Tumbleweed:libdxfrw1-1.0.1+git.20211110-1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2024-06-15T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-21899"
    },
    {
      "cve": "CVE-2021-21900",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-21900"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A code execution vulnerability exists in the dxfRW::processLType() functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dxf file can lead to a use-after-free vulnerability. An attacker can provide a malicious file to trigger this vulnerability.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "summary": "SUSE Bug 1192938 for CVE-2021-21900",
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      ],
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            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
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          "date": "2024-06-15T00:00:00Z",
          "details": "important"
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      "title": "CVE-2021-21900"
    }
  ]
}
  ghsa-xwm9-c4jc-crcp
Vulnerability from github
Published
2022-05-24 19:21
    Modified
2022-05-24 19:21
    
        Severity ?
      
      
    
        VLAI Severity ?
      
      Details
A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
{
  "affected": [],
  "aliases": [
    "CVE-2021-21899"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-11-19T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.",
  "id": "GHSA-xwm9-c4jc-crcp",
  "modified": "2022-05-24T19:21:07Z",
  "published": "2022-05-24T19:21:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21899"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202305-26"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1350"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5077"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}
  gsd-2021-21899
Vulnerability from gsd
Modified
2023-12-13 01:23
      Details
        
          A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
        
      Aliases
        
      Aliases
        
      {
  "GSD": {
    "alias": "CVE-2021-21899",
    "description": "A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.",
    "id": "GSD-2021-21899",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-21899.html",
      "https://www.debian.org/security/2022/dsa-5077",
      "https://security.archlinux.org/CVE-2021-21899",
      "https://advisories.mageia.org/CVE-2021-21899.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-21899"
      ],
      "details": "A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.",
      "id": "GSD-2021-21899",
      "modified": "2023-12-13T01:23:10.787876Z",
      "schema_version": "1.4.0"
    }
  },
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        "ASSIGNER": "talos-cna@cisco.com",
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      "affects": {
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          "vendor_data": [
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              "product": {
                "product_data": [
                  {
                    "product_name": "LibreCAD",
                    "version": {
                      "version_data": [
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                          "version_value": "LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580"
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          {
            "name": "FEDORA-2021-67c946a9f3",
            "refsource": "FEDORA",
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    "nvd.nist.gov": {
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                "cpe_name": [],
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            {
              "name": "FEDORA-2021-67c946a9f3",
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-05-21T22:15Z",
      "publishedDate": "2021-11-19T19:15Z"
    }
  }
}
  cnvd-2021-92473
Vulnerability from cnvd
Title
LibreCad缓冲区溢出漏洞(CNVD-2021-92473)
Description
LibreCAD是LibreCAD组织的一款开源的CAD(计算机辅助设计)应用程序。
LibreCad libdxfrw 中存在缓冲区错误漏洞,该漏洞源于产品的dwgCompressor::copyCompBytes21函数未能正确处理特殊的输入数据。攻击者可通过该漏洞导致堆缓冲区溢出。
Severity
中
        VLAI Severity ?
      
      Patch Name
LibreCad缓冲区溢出漏洞的补丁
Patch Description
LibreCAD是LibreCAD组织的一款开源的CAD(计算机辅助设计)应用程序。
LibreCad libdxfrw 中存在缓冲区错误漏洞,该漏洞源于产品的dwgCompressor::copyCompBytes21函数未能正确处理特殊的输入数据。攻击者可通过该漏洞导致堆缓冲区溢出。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://librecad.org/
Reference
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1350
Impacted products
          | Name | LibreCAD LibreCAD | 
|---|
{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21899"
    }
  },
  "description": "LibreCAD\u662fLibreCAD\u7ec4\u7ec7\u7684\u4e00\u6b3e\u5f00\u6e90\u7684CAD\uff08\u8ba1\u7b97\u673a\u8f85\u52a9\u8bbe\u8ba1\uff09\u5e94\u7528\u7a0b\u5e8f\u3002\n\nLibreCad libdxfrw \u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u7684dwgCompressor\uff1a\uff1acopyCompBytes21\u51fd\u6570\u672a\u80fd\u6b63\u786e\u5904\u7406\u7279\u6b8a\u7684\u8f93\u5165\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\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\uff1a\r\nhttps://librecad.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-92473",
  "openTime": "2021-11-30",
  "patchDescription": "LibreCAD\u662fLibreCAD\u7ec4\u7ec7\u7684\u4e00\u6b3e\u5f00\u6e90\u7684CAD\uff08\u8ba1\u7b97\u673a\u8f85\u52a9\u8bbe\u8ba1\uff09\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nLibreCad libdxfrw \u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u7684dwgCompressor\uff1a\uff1acopyCompBytes21\u51fd\u6570\u672a\u80fd\u6b63\u786e\u5904\u7406\u7279\u6b8a\u7684\u8f93\u5165\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\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": "LibreCad\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "LibreCAD LibreCAD"
  },
  "referenceLink": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1350",
  "serverity": "\u4e2d",
  "submitTime": "2021-11-22",
  "title": "LibreCad\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-92473\uff09"
}
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      Sightings
| Author | Source | Type | Date | 
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
 - Confirmed: The vulnerability is confirmed from an analyst perspective.
 - Published Proof of Concept: A public proof of concept is available for this vulnerability.
 - Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
 - Patched: This vulnerability was successfully patched by the user reporting the sighting.
 - Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
 - Not confirmed: The user expresses doubt about the veracity of the vulnerability.
 - Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
 
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