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

EPSS: 0.014 (69.4th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

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.