CVE-2021-33638 json
Run copy with container in a malicious directory may cause container escaping
published 2023-10-29 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20315
- cvss
- 8.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
When the isula cp command is used to copy files from a container to a host machine and the container is controlled by an attacker, the attacker can escape the container.
Patch / fix
- openEuler iSulad 0102-fix-loading-of-nsswitch-based-config-inside-chr.patch, 0106-fix-loading-of-nsswitch-based-config-inside-chroot-u.patch
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.21% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N |
Affected products
- openEuler iSulad
Classification
- Weakness
-
- CWE-665 Improper Initialization
References
Sources
- CVE List CVE-2021-33638
- NVD CVE-2021-33638
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