{"id":"CVE-2020-8935","aliases":["EUVD-2020-29766","GHSA-6g37-4jmq-qq2x"],"status":"published","title":"An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to...","description":"An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite sections of the Enclave memory address. We recommend updating your library.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00141,"percentile":0.03427,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-787"],"published":"2020-12-15T14:55:32Z","modified":"2026-10-20T13:54:05Z","products":[{"vendor":"google","product":"asylo"},{"vendor":"google llc","product":"asylo"}],"references":[{"url":"https://github.com/google/asylo/commit/ed0926bff0e423cd122a18b3d2fc772817f66825","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8935"},{"url":"https://github.com/advisories/GHSA-6g37-4jmq-qq2x"}],"sources":{"cve":[{"id":"CVE-2020-8935","description":"An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite sections of the Enclave memory address. We recommend updating your library.","status":"published","published":"2020-12-15T14:55:32Z","modified":"2024-08-04T10:12:11.011Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:50.545879Z"}],"euvd":[{"id":"EUVD-2020-29766","description":"An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite sections of the Enclave memory address. We recommend updating your library.","status":"published","published":"2020-12-15T14:55:32Z","modified":"2024-08-04T10:12:11Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T03:07:55.71159Z"}],"ghsa":[{"id":"GHSA-6g37-4jmq-qq2x","title":"An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to...","description":"An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite sections of the Enclave memory address. We recommend updating your library.","status":"published","published":"2022-05-24T17:36:37Z","modified":"2023-01-29T05:05:03Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:45:42.123832Z"}],"nvd":[{"id":"CVE-2020-8935","description":"An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite sections of the Enclave memory address. We recommend updating your library.","status":"published","published":"2020-12-15T15:15:12.987Z","modified":"2026-06-17T03:27:11.897Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119","CWE-787"],"updated_at":"2026-11-02T14:06:27.73474Z"}],"osv":[{"id":"CVE-2020-8935","description":"An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite sections of the Enclave memory address. We recommend updating your library.","status":"published","published":"2020-12-15T15:15:12.987Z","modified":"2026-10-20T13:54:05.508468019Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:17.663289Z"}]}}