CVE-2018-20742

7.5 highEPSS 1.4%

High (7.5) in ucbrise opaque. EPSS 1.4% chance of exploitation in the next 30 days.

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

CVSS 3.0

7.5 high

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2019-01-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

ucbrise:opaque

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

Check your stack JSON