Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-41103 |
CWE-ID | CWE-276 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
openEuler Operating systems & Components / Operating system containerd Operating systems & Components / Operating system package or component |
Vendor | openEuler |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU57038
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-41103
CWE-ID:
CWE-276 - Incorrect Default Permissions
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect default permissions for container root directories and some plugins. When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host can discover, read, and modify those files.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP2
containerd: before 1.2.0-201
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1428
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.