Vulnerability in Occlum Project
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.
EPSS: 0.004 (35.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Occlum_project Occlum
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-44421?
- CVE-2021-44421 is a medium-severity vulnerability in Occlum Project, classified under Observable Discrepancy. CVSS score: 5.5/10. Published 2022-03-10.
- How severe is CVE-2021-44421?
- Medium severity. CVSS v3 base score is 5.5 out of 10.