CVE-2021-22552

An untrusted memory read vulnerability in Asylo versions up to 0.6.1 allows an untrusted attacker to pass a syscall number in MessageReader that is then used by sysno() and can bypass validation. This can allow the attacker to read memory from within the secure enclave. We recommend updating to Asylo 0.6.3 or past https://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1a

CVSS v3 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

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/90d7619e9dd99bcdb6cd28c7649d741d254d9a1a	Exploit Patch Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

10 Aug 2021, 19:51

Type	Values Removed	Values Added
CWE		CWE-125
References	~~(MISC) https://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1a -~~	(MISC) https://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1a - Exploit, Patch, Third Party Advisory
CPE		cpe:2.3:a:google:asylo::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 2.1 v3 : 5.5

02 Aug 2021, 16:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-08-02 16:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-22552

Mitre link : CVE-2021-22552

CVE.ORG link : CVE-2021-22552

JSON object : View

Products Affected

google

asylo

CWE

CWE-125

Out-of-bounds Read

CWE-126

Buffer Over-read

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