CVE-2023-29420: BZIP3 Project BZIP3

Medium severity, CVSS 6.5. EPSS: 0.9% chance of exploitation in the next 30 days.

An issue was discovered in libbzip3.a in bzip3 before 1.2.3. There is a crash caused by an invalid memmove in bz3_decode_block.

Affected products

• BZIP3 Project BZIP3: before 1.2.3 (fixed in 1.2.3)

Published 2023-04-06. Last modified 2026-06-17.