Description
The pointer-validation logic in util/mem_util.rs in Occlum before 0.26.0 for Intel SGX acts as a confused deputy that allows a local attacker to access unauthorized information via side-channel analysis.
References
https://github.com/occlum/occlum/commit/36918e42bf6732c4d3996bc99eb013eb6b90b249
PatchThird Party Advisory
https://github.com/occlum/occlum/compare/0.25.0...v0.26.0
Third Party Advisory
CVSS impact metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5 · Medium
CVSS V3.1
CVSS V3.0
CVSS V2.0
Information
Source identifier
Vulnerability status
Analyzed
Published
2022-03-10T17:44:15.447
3 years agoLast modified
2022-03-15T15:22:28.337
3 years ago