CVE-2020-29363

Description

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.

CVSS Metrics

• v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
• v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.36%• Percentile: 58%

Techniques & Countermeasures

• CWE-787•Out-of-bounds Write

  The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

• debian•debian_linux

  10.0

• oracle•communications_cloud_native_core_policy

  1.14.0

• p11-kit_project•p11-kit

  ≥ 0.23.6, < 0.23.22

References (4)

• https://github.com/p11-glue/p11-kit/releases
• https://www.debian.org/security/2021/dsa-4822
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5j67-fw89-fp6x