CVE intelligence and bounded remediation

CVE-2023-36307 — Simonwaldherr Zplgfa security vulnerability

Medium CVSS 5.5

ZPLGFA 1.1.1 allows attackers to cause a panic (because of an integer index out of range during a ConvertToGraphicField call) via an image of zero width. NOTE: it is unclear whether there are common use cases in which this panic could have any security consequence

Severity
Medium
CVSS
5.5 (3.1)
Published
2023-09-05
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-129

Affected products

  • simonwaldherr / zplgfa / 1.1.1

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

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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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