CVE intelligence and bounded remediation

CVE-2020-23861 — Gnu Libredwg security vulnerability

Medium CVSS 5.5

A heap-based buffer overflow vulnerability exists in LibreDWG 0.10.1 via the read_system_page function at libredwg-0.10.1/src/decode_r2007.c:666:5, which causes a denial of service by submitting a dwg file.

Severity
Medium
CVSS
5.5 (3.1)
Published
2021-05-18
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-787

Affected products

  • gnu / libredwg / 0.10.1

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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