{"cve":"CVE-2018-20742","nvd":{"published":"2019-01-24T05:29:00.753","modified":"2026-06-17T01:53:23.087","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-787"],"references":["https://github.com/ucbrise/opaque/commit/5ddda15d89f5ac82f4416208c5319ace4aecdc36","https://github.com/ucbrise/opaque/issues/66","https://github.com/ucbrise/opaque/commit/5ddda15d89f5ac82f4416208c5319ace4aecdc36","https://github.com/ucbrise/opaque/issues/66"],"products":["ucbrise:opaque"],"source":"nvd","synced_at":"2026-10-19T20:54:46.948512734+00:00"},"epss":{"cve":"CVE-2018-20742","score":0.01385,"percentile":0.72223,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}