Description
An issue was discovered in SKALE sgxwallet 1.58.3. The provided input for ECALL 14 triggers a branch in trustedEcdsaSign that frees a non-initialized pointer from the stack. An attacker can chain multiple enclave calls to prepare a stack that contains a valid address. This address is then freed, resulting in compromised integrity of the enclave. This was resolved after v1.58.3 and not reproducible in sgxwallet v1.77.0.
References (2)
Core 2
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/skalenetwork/sgxwallet/releases
Patch, Third Party Advisory x_refsource_misc
https://github.com/skalenetwork/sgxwallet/commit/4e9b5b7526db083177e81f8bafeaa4914d276a82
Scores
CVSS v3
9.8
EPSS
0.0158
EPSS Percentile
72.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-824
Status
published
Products (1)
skale/sgxwallet
1.58.3
Published
Sep 27, 2021
Tracked Since
Feb 18, 2026