Vulnerability Details CVE-2021-44421
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 22.6%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 2.1
References
- https://github.com/occlum/occlum/blob/821ea843ae21037e6cff5268306d2da1fb131552/src/libos/src/util/mem_util.rs#L130
- https://github.com/occlum/occlum/blob/821ea843ae21037e6cff5268306d2da1fb131552/src/libos/src/util/mem_util.rs#L51
- https://github.com/occlum/occlum/commit/36918e42bf6732c4d3996bc99eb013eb6b90b249
- https://github.com/occlum/occlum/compare/0.25.0...v0.26.0
- https://github.com/occlum/occlum/blob/821ea843ae21037e6cff5268306d2da1fb131552/src/libos/src/util/mem_util.rs#L130
- https://github.com/occlum/occlum/blob/821ea843ae21037e6cff5268306d2da1fb131552/src/libos/src/util/mem_util.rs#L51
- https://github.com/occlum/occlum/commit/36918e42bf6732c4d3996bc99eb013eb6b90b249
- https://github.com/occlum/occlum/compare/0.25.0...v0.26.0
Products affected by CVE-2021-44421
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cpe:2.3:a:occlum_project:occlum:-
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cpe:2.3:a:occlum_project:occlum:0.10.0
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cpe:2.3:a:occlum_project:occlum:0.11.0
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cpe:2.3:a:occlum_project:occlum:0.12.0
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cpe:2.3:a:occlum_project:occlum:0.12.1
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cpe:2.3:a:occlum_project:occlum:0.12.2
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cpe:2.3:a:occlum_project:occlum:0.13.0
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cpe:2.3:a:occlum_project:occlum:0.13.1
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cpe:2.3:a:occlum_project:occlum:0.14.0
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cpe:2.3:a:occlum_project:occlum:0.15.0
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cpe:2.3:a:occlum_project:occlum:0.15.1
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cpe:2.3:a:occlum_project:occlum:0.16.0
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cpe:2.3:a:occlum_project:occlum:0.17.0
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cpe:2.3:a:occlum_project:occlum:0.18.0
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cpe:2.3:a:occlum_project:occlum:0.18.1
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cpe:2.3:a:occlum_project:occlum:0.19.0
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cpe:2.3:a:occlum_project:occlum:0.19.1
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cpe:2.3:a:occlum_project:occlum:0.20.0
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cpe:2.3:a:occlum_project:occlum:0.21.0
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cpe:2.3:a:occlum_project:occlum:0.22.0
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cpe:2.3:a:occlum_project:occlum:0.23.0
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cpe:2.3:a:occlum_project:occlum:0.23.1
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cpe:2.3:a:occlum_project:occlum:0.23.2
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cpe:2.3:a:occlum_project:occlum:0.23.3
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cpe:2.3:a:occlum_project:occlum:0.23.4
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cpe:2.3:a:occlum_project:occlum:0.23.5
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cpe:2.3:a:occlum_project:occlum:0.23.6
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cpe:2.3:a:occlum_project:occlum:0.23.7
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cpe:2.3:a:occlum_project:occlum:0.24.0
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cpe:2.3:a:occlum_project:occlum:0.24.1
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cpe:2.3:a:occlum_project:occlum:0.24.2
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cpe:2.3:a:occlum_project:occlum:0.25.0
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cpe:2.3:a:occlum_project:occlum:0.5.0
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cpe:2.3:a:occlum_project:occlum:0.6.0
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cpe:2.3:a:occlum_project:occlum:0.7.0
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cpe:2.3:a:occlum_project:occlum:0.8.0
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cpe:2.3:a:occlum_project:occlum:0.9.0