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CVE-2021-22549— Arbitrary enclave memory overwrite vulnerability in Asylo TrustedPrimitives::UntrustedCall

Quick assessment

Affected
Google LLC Asylo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Google Asylo是美国谷歌（Google）公司的一个用于开发可信应用程序的框架。该软件支持创建一个可信任的执行环境，包括软件隔离和硬件隔离。 asylo存在安全漏洞，该漏洞源于可以将地址修改为指向可信内存，以覆盖任意可信内存。

CVSS 6.5 · Medium EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-22549

Vulnerability Information
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Vulnerability Title
Arbitrary enclave memory overwrite vulnerability in Asylo TrustedPrimitives::UntrustedCall
Source: CVE Program / CVE List V5
Vulnerability Description
An attacker can modify the address to point to trusted memory to overwrite arbitrary trusted memory. It is recommended to update past 0.6.2 or git commit https://github.com/google/asylo/commit/53ed5d8fd8118ced1466e509606dd2f473707a5c
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用越界的指针偏移
Source: CVE Program / CVE List V5
Vulnerability Title
Google Asylo 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Asylo是美国谷歌（Google）公司的一个用于开发可信应用程序的框架。该软件支持创建一个可信任的执行环境，包括软件隔离和硬件隔离。 asylo存在安全漏洞，该漏洞源于可以将地址修改为指向可信内存，以覆盖任意可信内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Google LLC Asylo unspecified ~ 0.6.2 -

II. Public POCs for CVE-2021-22549

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III. Intelligence Information for CVE-2021-22549

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Patches & Fixes for CVE-2021-22549 (1)

Same Patch Batch · Google LLC · 2021-06-08 · 3 CVEs total

CVE-2021-22548 6.5 MEDIUM Arbitrary enclave memory overread vulnerability in Asylo TrustedPrimitives::UntrustedCall
CVE-2021-22550 6.5 MEDIUM Enclave memory overwrite/overread vulnerability in Asylo UntrustedCacheMalloc::GetBuffer

IV. Related Vulnerabilities

Same product: Asylo
Same vendor: Google LLC
Same weakness: CWE-823