Upstream information
Description
KubeVirt is a virtual machine management add-on for Kubernetes. Prior to 1.5.3 and 1.6.1, a vulnerability was discovered that allows a VM to read arbitrary files from the virt-launcher pod's file system. This issue stems from improper symlink handling when mounting PVC disks into a VM. Specifically, if a malicious user has full or partial control over the contents of a PVC, they can create a symbolic link that points to a file within the virt-launcher pod's file system. Since libvirt can treat regular files as block devices, any file on the pod's file system that is symlinked in this way can be mounted into the VM and subsequently read. Although a security mechanism exists where VMs are executed as an unprivileged user with UID 107 inside the virt-launcher container, limiting the scope of accessible resources, this restriction is bypassed due to a second vulnerability. The latter causes the ownership of any file intended for mounting to be changed to the unprivileged user with UID 107 prior to mounting. As a result, an attacker can gain access to and read arbitrary files located within the virt-launcher pod's file system or on a mounted PVC from within the guest VM. This vulnerability is fixed in 1.5.3 and 1.6.1.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 6.5 | 6.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | High | High |
| Integrity Impact | None | None |
| Availability Impact | None | None |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 7.1 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | Low |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | High |
| Vulnerable System Integrity Impact | None |
| Vulnerable System Availability Impact | None |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kubevirt | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | kubevirt | Affected |
| SUSE Linux Enterprise Micro 5.3 | kubevirt | Affected |
| SUSE Linux Enterprise Micro 5.4 | kubevirt | Affected |
| SUSE Linux Enterprise Micro 5.5 | kubevirt | Affected |
| SUSE Linux Enterprise Module for Containers 15 SP6 | kubevirt | Affected |
| SUSE Linux Enterprise Module for Containers 15 SP7 | kubevirt | Affected |
| SUSE Linux Enterprise Server 15 SP6 | kubevirt | Affected |
| SUSE Linux Enterprise Server 15 SP7 | kubevirt | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kubevirt | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | kubevirt | Affected |
| SUSE Linux Micro 6.0 | kubevirt | Affected |
| SUSE Linux Micro 6.1 | kubevirt | Affected |
| openSUSE Leap 15.6 | kubevirt | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | kubevirt | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kubevirt | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | kubevirt | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | kubevirt | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | kubevirt | Affected |
| SUSE Linux Enterprise Module for Containers 15 SP4 | kubevirt | Affected |
| SUSE Linux Enterprise Module for Containers 15 SP5 | kubevirt | Affected |
| SUSE Linux Enterprise Server 15 SP4 | kubevirt | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | kubevirt | Affected |
| SUSE Linux Enterprise Server 15 SP5 | kubevirt | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | kubevirt | Affected |
| SUSE Manager Proxy 4.3 | kubevirt | Affected |
| SUSE Manager Retail Branch Server 4.3 | kubevirt | Affected |
| SUSE Manager Server 4.3 | kubevirt | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kubevirt | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kubevirt | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kubevirt | Affected |
| openSUSE Leap 15.4 | kubevirt | Affected |
| openSUSE Leap 15.5 | kubevirt | Affected |
| openSUSE Leap Micro 5.3 | kubevirt | Affected |
| openSUSE Leap Micro 5.4 | kubevirt | Affected |
| openSUSE Leap Micro 5.5 | kubevirt | Affected |
| Products at an unknown state of their lifecycle. | ||
| SUSE Linux Micro Extras 6.0 | kubevirt | Affected |
| SUSE Linux Micro Extras 6.1 | kubevirt | Affected |
SUSE Timeline for this CVE
CVE page created: Sat Nov 8 02:05:37 2025CVE page last modified: Mon Nov 10 12:43:31 2025