SUSE update for Includes a kubernetes update to 1.17.17 including a backport for CVE-2021-25741
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-25741 |
| CWE-ID | CWE-264 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
SUSE CaaS Platform Operating systems & Components / Operating system skuba Operating systems & Components / Operating system package or component kubernetes-kubelet Operating systems & Components / Operating system package or component kubernetes-kubeadm Operating systems & Components / Operating system package or component kubernetes-common Operating systems & Components / Operating system package or component kubernetes-client Operating systems & Components / Operating system package or component caasp-release Operating systems & Components / Operating system package or component skuba-update Operating systems & Components / Operating system package or component release-notes-caasp Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Security restrictions bypass
EUVDB-ID: #VU56902
Risk: Medium
CVSSv4.0: 7.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID: CVE-2021-25741
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: Yes
DescriptionThe vulnerability allows a remote user to bypass implemented security restrictions.
The vulnerability exists due to application does not properly impose security restrictions by allowing hostPath-like access without use of the hostPath feature. A remote user can create a container with subpath volume mounts to access files and directories outside of the volume, including on the host filesystem.
Update the affected package Includes a kubernetes update to 1.17.17 including a backport for CVE-2021-25741 to the latest version.
Vulnerable software versionsSUSE CaaS Platform: 4.0
skuba: before 1.4.13-3.56.2
kubernetes-kubelet: before 1.17.17-4.25.2
kubernetes-kubeadm: before 1.17.17-4.25.2
kubernetes-common: before 1.17.17-4.25.2
kubernetes-client: before 1.17.17-4.25.2
caasp-release: before 4.2.6-24.43.2
skuba-update: before 1.4.13-3.56.2
release-notes-caasp: before 4.2.20210929-4.71.2
CPE2.3- cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:skuba:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kubernetes-kubelet:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kubernetes-kubeadm:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kubernetes-common:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kubernetes-client:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:caasp-release:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:skuba-update:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:release-notes-caasp:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20213323-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
