Medium5.3Red Hat & Ubuntu Linux
Heap-based buffer overflow in pnm2png allows information disclosure and denial of service
CVE-2026-3713 Published Mar 8, 2026
CVE-2026-3713
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Heap-based buffer overflow in pnm2png allows information disclosure and denial of service. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-131. Affected package(s): libpng-main. Resolved in Red Hat advisory RHSA-2026:6732 — update the affected packages (`sudo dnf update`).
Affected versions
- libpng-main-1.6.56-1.hum1
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Fixed versions
- RHSA-2026:6732
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:6732 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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