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CVE-2020-8944

Unchecked buffer overrun in ecall_restore

MEDIUM
5.5
CVSS Score
Published: December 15, 2020 at 02:55 PM UTC
Updated: June 17, 2026 at 03:27 AM UTC
1 product affected across 1 vendorAsylo

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

An arbitrary memory write vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to ecall_restore using the attribute output which fails to check the range of a pointer. An attacker can use this pointer to write to arbitrary memory addresses including those within the secure enclave We recommend upgrading past commit 382da2b8b09cbf928668a2445efb778f76bd9c8a

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Asylo· Google
95%
v ≤ 0.6.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMExploitThird Party Advisory
Source: [email protected]
https://github.com/google/asylo/commit/382da2b8b09cbf928668a2445efb778f76bd9c8a

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120CWE-787

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