CVE-2020-8936

An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allows an attacker to make a host call to UntrustedCall. UntrustedCall failed to validate the buffer range within sgx_params and allowed the host to return a pointer that was an address within the enclave memory. This allowed an attacker to read memory values from within the enclave.

CVSS v3 5.3 MEDIUM
CVSS v2.0 2.1 LOW

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/google/asylo/commit/83036fd841d33baa7e039f842d131aa7881fdcc2	Patch Third Party Advisory
https://github.com/google/asylo/commit/83036fd841d33baa7e039f842d131aa7881fdcc2	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:39

Type	Values Removed	Values Added
CVSS	v2 : ~~2.1~~ v3 : ~~5.5~~	v2 : 2.1 v3 : 5.3
References	~~() https://github.com/google/asylo/commit/83036fd841d33baa7e039f842d131aa7881fdcc2 - Patch, Third Party Advisory~~	() https://github.com/google/asylo/commit/83036fd841d33baa7e039f842d131aa7881fdcc2 - Patch, Third Party Advisory

Information

Published : 2020-12-15 15:15

Updated : 2024-11-21 05:39

NVD link : CVE-2020-8936

Mitre link : CVE-2020-8936

CVE.ORG link : CVE-2020-8936

JSON object : View

Products Affected

google

asylo

CWE

CWE-125

Out-of-bounds Read

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