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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 5.3 · p11-kit_projectNVD modified 2026-10-14 10:17
Affected (CPE criteria) 1
cpe:2.3:a:p11-kit_project:p11-kit:*:*:*:*:*:*:*:*
References 9
- https://github.com/p11-glue/p11-kit/releases Release Notes, Third Party Advisory
- https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5wpq-43j2-6qwc Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00002.html Mailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4822 Third Party Advisory
- https://github.com/p11-glue/p11-kit/releases Release Notes, Third Party Advisory
- https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5wpq-43j2-6qwc Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00002.html Mailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4822 Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html