CVE-2020-29362

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.

CVSS 3.1

5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

2.3% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-25)

CWE

CWE-125

Published

2020-12-16

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• p11-kit_project:p11-kit

References

• https://github.com/p11-glue/p11-kit/releases
• https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5wpq-43j2-6qwc
• https://lists.debian.org/debian-lts-announce/2021/01/msg00002.html
• https://www.debian.org/security/2021/dsa-4822
• https://github.com/p11-glue/p11-kit/releases

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