CVE Vulnerability

CVE-2020-15107

In openenclave before 0.10.0, enclaves that use x87 FPU operations are vulnerable to tampering by a malicious host application. By violating the Linux System V Application Binary Interface (ABI) for such operations, a host app can compromise the execution integrity of some x87 FPU operations in an enclave. Depending on the FPU control configuration of the enclave app and whether the operations are used in secret-dependent execution paths, this vulnerability may also be used to mount a side-channel attack on the enclave. This has been fixed in 0.10.0 and the current master branch. Users will need to recompile their applications against the patched libraries to be protected from this vulnerability.

1.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 1.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/openenclave/openenclave/security/advisories/GHSA-7wjx-wcwg-w999 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:openenclave:openenclave:*:*:*:*:*:*:*:*
Information

Published : 2020-07-15 10:15

Updated : 2020-07-22 03:03

NVD link : CVE-2020-15107

Mitre link : CVE-2020-15107

Products Affected
No products.
CWE
NVD-CWE-noinfo