Buffer overflow in Ucbrise Opaque
CVE-2018-20742
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.014 (71.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/ucbrise/opaque/issues/66 (Exploit, Patch, Third Party Advisory)
- github.com/ucbrise/opaque/commit/5ddda15d89f5ac82f4416208c5319ace4aecdc36 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-20742?
- CVE-2018-20742 is a high-severity vulnerability in Ucbrise Opaque, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2019-01-24.
- How severe is CVE-2018-20742?
- High severity. CVSS v3 base score is 7.5 out of 10.