CVE-2021-27345: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

A null pointer dereference was discovered in ucompthread in stream.c in Irzip 0.631 which allows attackers to cause a denial of service (DOS) via a crafted compressed file.

Affected products

• Debian Debian Linux: version 9.0 only
• Long Range Zip Project Long Range Zip: version 0.631 only

Published 2021-06-10. Last modified 2026-06-17.