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CVE Record

CVE-2018-14471: dwg_obj_block_control_get_block_headers in dwg_api.c in GNU LibreDWG 0.5.1048 allows remote attackers to ca...

dwg_obj_block_control_get_block_headers in dwg_api.c in GNU LibreDWG 0.5.1048 allows remote attackers to cause a denial of service (NULL pointer dereference and SEGV) via a crafted dwg file.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

GNU LibreDWG 0.5.1048 can crash when it processes a specially crafted DWG file. The documented impact is denial of service, not data theft or code execution. Risk depends on whether business systems accept or automatically process untrusted DWG files.

Executive priority

Prioritize based on DWG exposure. Internet-facing or automated DWG processing should be reviewed promptly. Systems that do not process DWG files or do not use LibreDWG have low immediate business urgency.

Technical view

CVE-2018-14471 is a NULL pointer dereference and segmentation fault in dwg_obj_block_control_get_block_headers in dwg_api.c. The source describes remote denial of service via a crafted DWG file affecting GNU LibreDWG 0.5.1048. No CVSS, CWE, patch, or fixed version is provided in the bundle.

Likely exposure

Exposure is most likely in file upload, conversion, scanning, or CAD-processing workflows that use GNU LibreDWG 0.5.1048 or a bundled copy to parse DWG files from untrusted sources.

Exploitation context

The bundle does not show CISA KEV listing or active exploitation. Public issue tracking exists. The attacker-controlled input is a crafted DWG file that must be processed by vulnerable LibreDWG code.

Researcher notes

The evidence identifies a specific parser function and denial-of-service outcome, but lacks severity scoring, CWE mapping, affected package metadata, and fix details. Treat remediation status as unconfirmed unless vendor or package-maintainer guidance is verified.

Mitigation direction

  • Inventory systems and containers that include GNU LibreDWG or libredwg.
  • Check vendor guidance for a fixed version or recommended workaround.
  • Avoid processing untrusted DWG files until exposure is understood.
  • Isolate DWG parsing in resource-limited worker processes.
  • Monitor DWG-processing services for crashes or repeated failures.

Validation and detection

  • Confirm whether GNU LibreDWG 0.5.1048 is installed or bundled.
  • Identify public routes, jobs, or support workflows accepting DWG files.
  • Review crash logs for SEGV or NULL dereference during DWG parsing.
  • Check the upstream issue and CVE record before closing remediation.
  • Verify compensating isolation around any remaining DWG parser use.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.