CVE-2023-37479 impacts the Open Enclave SDK, a library for hardware-based Trusted Execution Environments. The vulnerability stems from the SDK's failure to properly sanitize the MXCSR register and the RFLAGS.AC flag upon enclave entry, leading to potential MXCSR Configuration Dependent Timing (MCDT) and unaligned memory access side-channel attacks. Rated 7.5 HIGH (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N), this vulnerability is network-exploitable with low attack complexity, potentially allowing attackers to infer sensitive data. While no active exploitation, public exploit code, or significant community discussion has been observed, users are advised to recompile applications against Open Enclave SDK version 0.19.3 or later to mitigate the risk.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.19.3CPE matchmatch criteria | cpe:2.3:a:openenclave:openenclave:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
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