{"id":"UBUNTU-CVE-2023-1017","details":"An out-of-bounds write vulnerability exists in TPM2.0's Module Library allowing writing of a 2-byte data past the end of TPM2.0 command in the CryptParameterDecryption routine. An attacker who can successfully exploit this vulnerability can lead to denial of service (crashing the TPM chip/process or rendering it unusable) and/or arbitrary code execution in the TPM context.","modified":"2026-01-30T00:59:42.306772Z","published":"2023-02-28T00:00:00Z","related":["USN-5933-1"],"upstream":["CVE-2023-1017"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-1017"},{"type":"REPORT","url":"https://kb.cert.org/vuls/id/782720"},{"type":"REPORT","url":"https://trustedcomputinggroup.org/wp-content/uploads/TCGVRT0007-Advisory-FINAL.pdf"},{"type":"REPORT","url":"https://www.securityweek.com/security-defects-in-tpm-2-0-spec-raise-alarm-bells/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5933-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-1017"}],"affected":[{"package":{"name":"libtpms","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libtpms@0.9.3-0ubuntu1.22.04.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.3-0ubuntu1.22.04.1"}]}],"versions":["0.8.2-1ubuntu1","0.9.0-0ubuntu1","0.9.0-0ubuntu2","0.9.0-0ubuntu3","0.9.0-0ubuntu4","0.9.3-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.9.3-0ubuntu1.22.04.1","binary_name":"libtpms-dev"},{"binary_version":"0.9.3-0ubuntu1.22.04.1","binary_name":"libtpms0"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1017.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}