{"id":"UBUNTU-CVE-2020-29363","details":"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.","modified":"2026-02-04T02:37:43.085539Z","published":"2020-12-16T14:15:00Z","related":["USN-4677-1"],"upstream":["CVE-2020-29363"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-29363"},{"type":"REPORT","url":"https://lists.freedesktop.org/archives/p11-glue/2020-December/000712.html"},{"type":"REPORT","url":"https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5j67-fw89-fp6x"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4677-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-29363"}],"affected":[{"package":{"name":"p11-kit","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/p11-kit@0.23.9-2ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.23.9-2ubuntu0.1"}]}],"versions":["0.23.7-3","0.23.9-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.23.9-2ubuntu0.1","binary_name":"libp11-kit-dev"},{"binary_version":"0.23.9-2ubuntu0.1","binary_name":"libp11-kit0"},{"binary_version":"0.23.9-2ubuntu0.1","binary_name":"p11-kit"},{"binary_version":"0.23.9-2ubuntu0.1","binary_name":"p11-kit-modules"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29363.json"}},{"package":{"name":"p11-kit","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/p11-kit@0.23.20-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.23.20-1ubuntu0.1"}]}],"versions":["0.23.17-2","0.23.18.1-2","0.23.19-2","0.23.20-1","0.23.20-1build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.23.20-1ubuntu0.1","binary_name":"libp11-kit-dev"},{"binary_version":"0.23.20-1ubuntu0.1","binary_name":"libp11-kit0"},{"binary_version":"0.23.20-1ubuntu0.1","binary_name":"p11-kit"},{"binary_version":"0.23.20-1ubuntu0.1","binary_name":"p11-kit-modules"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29363.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}