CVE-2020-8936— Arbitrary enclave memory overwrite vulnerability in ECall ecall_restore
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2020-8936
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Arbitrary enclave memory overwrite vulnerability in ECall ecall_restore
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
Google Asylo 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Asylo是美国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。 Google Asylo 版本 0.6.0 存在缓冲区错误漏洞，该漏洞源于任意内存覆盖漏洞允许攻击者可利用该漏洞对UntrustedCall进行主机调用。UntrustedCall未能验证sgx参数内的缓冲区范围，并允许主机返回一个指针，该指针是enclave内存中的一个地址。这允许攻击者可利用该漏洞从enclave内读取内存值。
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 | 0.6.0 ~ 0.6.0 | - |
II. Public POCs for CVE-2020-8936
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2020-8936
请登录查看更多情报信息。
Same Patch Batch · Google LLC · 2020-12-15 · 10 CVEs total
| CVE-2020-8935 | 5.3 MEDIUM | Google Asylo 缓冲区错误漏洞 |
| CVE-2020-8937 | 5.3 MEDIUM | Arbitrary enclave memory location write from untrusted environment |
| CVE-2020-8938 | 5.3 MEDIUM | Arbitrary enclave memory location write from untrusted environment |
| CVE-2020-8939 | 5.3 MEDIUM | Out of Bounds read in Asylo |
| CVE-2020-8940 | 5.3 MEDIUM | Unchecked buffer overrun in enc_untrusted_recvmsg |
| CVE-2020-8941 | 5.3 MEDIUM | Unchecked buffer overrun in enc_untrusted_inet_pton |
| CVE-2020-8942 | 5.3 MEDIUM | Unchecked buffer overrun in enc_untrusted_read |
| CVE-2020-8943 | 5.3 MEDIUM | Unchecked buffer overrun in enc_untrusted_recvfrom |
| CVE-2020-8944 | 5.3 MEDIUM | Unchecked buffer overrun in ecall_restore |
IV. Related Vulnerabilities
Same product: Asylo
- CVE-2021-22552
Memory overread secure enclave in Asylo 0.6.2 - CVE-2021-22550
Enclave memory overwrite/overread vulnerability in Asylo Unt - CVE-2021-22549
Arbitrary enclave memory overwrite vulnerability in Asylo Tr - CVE-2021-22548
Arbitrary enclave memory overread vulnerability in Asylo Tru - CVE-2020-8944
Unchecked buffer overrun in ecall_restore
Same vendor: Google LLC
- CVE-2022-3095
Incorrect parsing of the backslash characters in Dart librar - CVE-2022-3474
Bazel leaks user credentials through the remote assets API - CVE-2022-3421
Privilege escalation in Google Drive for Desktop on MacOS - CVE-2022-3171
Memory handling vulnerability in ProtocolBuffers Java core a - CVE-2022-1941
Out of Memory issue in ProtocolBuffers for cpp and python
Same weakness: CWE-125
- CVE-2026-8177
XML::LibXML versions through 2.0210 for Perl read out-of-bou - CVE-2026-6104
Global buffer over-read in mb_convert_encoding() with attack - CVE-2026-7258
Out-of-bounds read in urldecode() on NetBSD - CVE-2026-8186
Open5GS NF client.c ogs_sbi_client_send_via_scp_or_sepp out- - CVE-2026-3508
ASUS System Control Interface 缓冲区错误漏洞
V. Comments for CVE-2020-8936
No comments yet