CVE intelligence and bounded remediation

CVE-2021-40401 — Gerbv Project Gerbv security vulnerability

Critical CVSS 10

A use-after-free vulnerability exists in the RS-274X aperture definition tokenization functionality of Gerbv 2.7.0 and dev (commit b5f1eacd) and Gerbv forked 2.7.1. A specially-crafted gerber file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity
Critical
CVSS
10 (3.0)
Published
2022-02-04
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-252

Affected products

  • gerbv_project / gerbv / 2.7.0
  • gerbv_project / gerbv / 2.7.1
  • fedoraproject / fedora / 36
  • debian / debian_linux / 11.0

Matched remediation archetype

Use-after-free, double free, and expired resource use

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

Check exposure

  • Trace ownership, references, callbacks, asynchronous tasks, and teardown paths around the affected object or resource.
  • Identify reachable inputs and timing or state transitions that can release the object while references remain.
  • Confirm affected builds, allocators, feature flags, architectures, and process privileges.

Remediate safely

  • Apply the maintained ownership or lifetime fix and rebuild all artifacts containing the affected native code.
  • Use explicit ownership, safe reference management, cancellation and join semantics, and idempotent teardown.
  • Add deterministic lifetime tests plus isolated sanitizer and concurrency coverage for shutdown and error paths.

Authoritative sources

Complete CVE record and remediation plan

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