CVE-2018-20742

CVSS V2 Medium 5 CVSS V3 High 7.5

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.

Overview

CVE ID
CVE-2018-20742

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2019-01-24T05:29:00

Last Modified Date
2019-02-13T19:02:56

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:ucbrise:opaque::::::::	1	OR		2018-12-01

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:P/A:N

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
PARTIAL

Availability Impact
NONE

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.0

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
NONE

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://github.com/ucbrise/opaque/issues/66	Exploit Patch Third Party Advisory
https://github.com/ucbrise/opaque/commit/5ddda15d89f5ac82f4416208c5319ace4aecdc36	Patch Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2018-20742
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20742

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:58:45				Added to TrackCVE
2022-12-03 16:53:41	2019-01-24T05:29Z	2019-01-24T05:29:00	CVE Published Date	updated
2022-12-03 16:53:41		2019-02-13T19:02:56	CVE Modified Date	updated
2022-12-03 16:53:41		Analyzed	Vulnerability Status	updated