{"id":"CVE-2021-34391","aliases":["EUVD-2021-21049","GHSA-46g8-9qh6-fjgm"],"status":"published","title":"Trusty TLK contains a vulnerability in the NVIDIA TLK kernel�s tz_handle_trusted_app_smc...","description":"Trusty contains a vulnerability in the NVIDIA TLK kernel function where a lack of checks allows the exploitation of an integer overflow through a specific SMC call that is triggered by the user, which may lead to denial of service.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00182,"percentile":0.07897,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2021-06-22T21:25:24Z","modified":"2026-06-17T03:55:46Z","products":[{"vendor":"nvidia","product":"jetson_linux"},{"vendor":"nvidia","product":"nvidia jetson tx1"}],"references":[{"url":"https://nvidia.custhelp.com/app/answers/detail/a_id/5205","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34391"},{"url":"https://github.com/advisories/GHSA-46g8-9qh6-fjgm"}],"sources":{"cve":[{"id":"CVE-2021-34391","description":"Trusty contains a vulnerability in the NVIDIA TLK kernel function where a lack of checks allows the exploitation of an integer overflow through a specific SMC call that is triggered by the user, which may lead to denial of service.","status":"published","published":"2021-06-22T21:25:24Z","modified":"2024-08-04T00:12:50.108Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21049","description":"Trusty contains a vulnerability in the NVIDIA TLK kernel function where a lack of checks allows the exploitation of an integer overflow through a specific SMC call that is triggered by the user, which may lead to denial of service.","status":"published","published":"2021-06-22T21:25:24Z","modified":"2024-08-04T00:12:50Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T03:24:32.445199Z"}],"ghsa":[{"id":"GHSA-46g8-9qh6-fjgm","title":"Trusty TLK contains a vulnerability in the NVIDIA TLK kernel�s tz_handle_trusted_app_smc...","description":"Trusty TLK contains a vulnerability in the NVIDIA TLK kernel�s tz_handle_trusted_app_smc function where a lack of integer overflow checks on the req_off and param_ofs variables leads to memory corruption of critical kernel structures.","status":"published","published":"2022-05-24T22:28:11Z","modified":"2023-01-30T05:05:32Z","cwes":["CWE-190"],"updated_at":"2026-11-02T14:47:18.26887Z"}],"nvd":[{"id":"CVE-2021-34391","description":"Trusty contains a vulnerability in the NVIDIA TLK kernel function where a lack of checks allows the exploitation of an integer overflow through a specific SMC call that is triggered by the user, which may lead to denial of service.","status":"published","published":"2021-06-22T22:15:09.08Z","modified":"2026-06-17T03:55:46.3Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:06:54.892562Z"}]}}