SB2025120936 - SUSE update for kubevirt, virt-api-container, virt-controller-container, virt-exportproxy-container, virt-exportserver-container, virt-handler-container, virt-launcher-container, virt-libguestfs-t
Published: December 9, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Input validation error (CVE-ID: CVE-2025-22872)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to perform code injection attacks.
The vulnerability exists due to insufficient validation of tags with unquoted attribute values that end with a solidus character (/). The tokenizer can interpret such tags as self-closing, leading to content following such tags as being placed in the wrong scope during DOM construction.
2) Incorrect permission assignment for critical resource (CVE-ID: CVE-2025-64324)
CWE-ID: CWE-732 - Incorrect Permission Assignment for Critical Resource
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Amber
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to a logic bug in the code of the virt-handler component. A remote attacker can read and write arbitrary files on the system.
3) Improper Authentication (CVE-ID: CVE-2025-64432)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local user to bypass authentication process.
The vulnerability exists due to an error when processing authentication requests in the Kubernetes aggregation layer. A local user can bypass the RBAC controls on the system.
4) Information disclosure (CVE-ID: CVE-2025-64433)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: 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/E:P/U:Green
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to erroneous handling of symlinks defined within a PVC disk. A remote user can read any file present in the virt-launcher pod.
5) Improper Authentication (CVE-ID: CVE-2025-64434)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local user to bypass authentication process.
The vulnerability exists due to improper TLS certificate management within virt-handler. A local user can execute privileged operations against other virt-handler instances.
6) Link following (CVE-ID: CVE-2025-64437)
CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to an insecure link following issue when determining the root mount of a virt-launcher pod. A local administrator can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.
Remediation
Install update from vendor's website.