{"id":"CVE-2018-20742","aliases":["EUVD-2018-13287","GHSA-32w7-6rgv-w2xg"],"status":"published","title":"An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check...","description":"An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check on ocall_malloc. The return value could be a pointer to enclave memory. It could cause an arbitrary enclave memory write.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01385,"percentile":0.72404,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2019-01-24T05:00:00Z","modified":"2026-10-20T13:29:01Z","products":[{"vendor":"ucbrise","product":"opaque"}],"references":[{"url":"https://github.com/ucbrise/opaque/issues/66","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/ucbrise/opaque/commit/5ddda15d89f5ac82f4416208c5319ace4aecdc36","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20742"},{"url":"https://github.com/advisories/GHSA-32w7-6rgv-w2xg"}],"sources":{"cve":[{"id":"CVE-2018-20742","description":"An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check on ocall_malloc. The return value could be a pointer to enclave memory. It could cause an arbitrary enclave memory write.","status":"published","published":"2019-01-24T05:00:00Z","modified":"2024-09-17T02:37:39.571Z","updated_at":"2026-11-02T14:34:59.872731Z"}],"euvd":[{"id":"EUVD-2018-13287","description":"An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check on ocall_malloc. The return value could be a pointer to enclave memory. It could cause an arbitrary enclave memory write.","status":"published","published":"2019-01-24T05:00:00Z","modified":"2024-09-17T02:37:39Z","updated_at":"2026-11-03T00:28:38.75517Z"}],"ghsa":[{"id":"GHSA-32w7-6rgv-w2xg","title":"An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check...","description":"An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check on ocall_malloc. The return value could be a pointer to enclave memory. It could cause an arbitrary enclave memory write.","status":"published","published":"2022-05-14T01:34:19Z","modified":"2023-02-02T05:04:04Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:51:46.878809Z"}],"nvd":[{"id":"CVE-2018-20742","description":"An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check on ocall_malloc. The return value could be a pointer to enclave memory. It could cause an arbitrary enclave memory write.","status":"published","published":"2019-01-24T05:29:00.753Z","modified":"2026-06-17T01:53:23.087Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:04:53.728218Z"}],"osv":[{"id":"CVE-2018-20742","description":"An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check on ocall_malloc. The return value could be a pointer to enclave memory. It could cause an arbitrary enclave memory write.","status":"published","published":"2019-01-24T05:29:00.753Z","modified":"2026-10-20T13:29:01.400216266Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:09.145458Z"}]}}