Security readout for executives and security teams
Plain-English summary
CVE-2020-23861 is a reported crash vulnerability in LibreDWG 0.10.1. A specially submitted DWG file can trigger a heap-based buffer overflow and cause denial of service. The public record does not provide CVSS scoring, confirmed affected version ranges beyond 0.10.1, or a named fix.
Executive priority
Prioritize if DWG files are processed from external sources or in availability-sensitive workflows. Without a public severity score or patch details in the bundle, treat this as an exposure-driven availability risk rather than a confirmed widespread emergency.
Technical view
The CVE describes a heap-based buffer overflow in LibreDWG 0.10.1, specifically read_system_page in src/decode_r2007.c at line 666. The stated impact is denial of service when processing a DWG file. Available metadata does not identify CWE, CPEs, patch level, or broader affected products.
Likely exposure
Exposure is most likely where LibreDWG 0.10.1 processes DWG files from users, customers, email, uploads, CI pipelines, or external repositories. Systems using other LibreDWG versions need vendor or project confirmation because the source bundle does not define version ranges.
Exploitation context
The source bundle supports denial of service through a submitted DWG file. It does not support active exploitation, public weaponization, privilege escalation, data theft, or remote code execution. CVE KEV status is false in the provided data.
Researcher notes
Evidence is sparse: the CVE names a vulnerable function and denial-of-service trigger, but affected-product metadata is n/a and no CVSS, CWE, CPE, or fix is supplied. Further triage should focus on the linked LibreDWG issue and project history.
Mitigation direction
- Check LibreDWG project guidance and release notes for a fixed version before upgrading.
- Avoid processing untrusted DWG files with LibreDWG 0.10.1.
- Run DWG parsing in an isolated, resource-limited environment.
- Add file-source controls and quarantine for externally supplied DWG files.
- Monitor services that parse DWG files for crashes or repeated restarts.
Validation and detection
- Inventory applications and containers for LibreDWG 0.10.1 usage.
- Identify workflows that accept DWG files from external or unauthenticated sources.
- Review crash logs around DWG parsing failures or service restarts.
- Confirm installed LibreDWG versions against project advisories or release notes.
- Verify DWG processing runs with least privilege and resource limits.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2020-23861 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/LibreDWG/libredwg/issues/248CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.