Findings

CVE-2020-29363

An issue was discovered in p11-kit 0.23.6 through 0.23.21.

Published Dec 16, 2020 · updated Oct 14, 2026 · p11-kit project p11-kit

An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 16, 2020 · NIST NVD

    Detected

    An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.

  2. Oct 14, 2026 · NIST NVD

    Updated

    An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.

Affected

  • cpe debian/debian linux10.0
  • cpe oracle/communications cloud native core policy1.14.0
  • cpe p11-kit project/p11-kitversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2020-29363

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-29363

    30-day exploitation probability 3.5%

    first.org
  • NIST NVDVulnerability recordCVE-2020-29363

    An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving

    nvd.nist.gov

References

CVE-2020-29363 · ZeroDay Findings