CVE-2021-44421

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Source
https://cve.org/CVERecord?id=CVE-2021-44421
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44421.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-44421
Published
2022-03-10T17:44:15Z
Modified
2026-10-20T10:55:06Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

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

Affected packages

Git / github.com/occlum/occlum

Affected ranges

Type
GIT
Repo
https://github.com/occlum/occlum
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a428ea3409bab6d605042552594c41d716d02ab8
Fixed
36918e42bf6732c4d3996bc99eb013eb6b90b249
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:occlum_project:occlum:*:*:*:*:*:software_guard_extensions:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "0.26.0"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "range":  [
                {
                    "fixed":  "36918e42bf6732c4d3996bc99eb013eb6b90b249"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

0.*
0.10.0
0.11.0
0.12.0
0.12.1
0.12.2
0.13.0
0.13.1
0.14.0
0.15.0
0.15.1
0.16.0
0.17.0
0.18.1
0.20.0
0.21.0
0.22.0
0.23.0
0.23.1
0.23.2
0.23.3
0.23.4
0.23.5
0.23.6
0.23.7
0.24.0
0.24.1
0.24.2
0.25.0
0.5.0
0.6.0
0.7.0
0.8.0
0.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44421.json"