Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-22550— Enclave memory overwrite/overread vulnerability in Asylo UntrustedCacheMalloc::GetBuffer

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，该漏洞源于可以修改enclave内存中的指针来覆盖安全enclave内的任意内存地址。

CVSS 6.5 · Medium EPSS 0.10% · P1

Possible ATT&CK Techniques 1 AI

T1564.004 · NTFS File Attributes
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-22550

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Enclave memory overwrite/overread vulnerability in Asylo UntrustedCacheMalloc::GetBuffer
Source: CVE Program / CVE List V5
Vulnerability Description
An attacker can modify the pointers in enclave memory to overwrite arbitrary memory addresses within the secure enclave. It is recommended to update past 0.6.3 or git commit https://github.com/google/asylo/commit/a47ef55db2337d29de19c50cd29b0deb2871d31c
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，该漏洞源于可以修改enclave内存中的指针来覆盖安全enclave内的任意内存地址。
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 ~ 0.6.1 -

II. Public POCs for CVE-2021-22550

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-22550

请登录查看更多情报信息。

Patches & Fixes for CVE-2021-22550 (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-2021-22549 6.5 MEDIUM Arbitrary enclave memory overwrite vulnerability in Asylo TrustedPrimitives::UntrustedCall

IV. Related Vulnerabilities

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