CVE-2020-29362: p11-Kit Project p11-Kit

Medium severity, CVSS 5.3. EPSS: 2.3% chance of exploitation in the next 30 days.

An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.

Affected products

• p11-Kit Project p11-Kit: from 0.23.6, before 0.23.22 (fixed in 0.23.22)

Published 2020-12-16. Last modified 2026-06-17.