Threat Intelligence Database

Kernel-based Virtual Machine (KVM) offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual machines using KVM.The packages also provide APIs for managing and interacting with the virtualized systems. Security Fix(es): * libvirt: Denial of service in XML parsing (CVE-2025-12748) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 10 Release Notes linked from the References section.

A flaw was discovered in libvirt in the XML file processing. More specifically, the parsing of user provided XML files was performed before the ACL checks. A malicious user with limited permissions could exploit this flaw by submitting a specially crafted XML file, causing libvirt to allocate too much memory on the host. The excessive memory consumption could lead to a libvirt process crash on the host, resulting in a denial-of-service condition.

Kernel-based Virtual Machine (KVM) offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual machines using KVM.The packages also provide APIs for managing and interacting with the virtualized systems. Security Fix(es): * libvirt: Crash of virtinterfaced via virConnectListInterfaces() (CVE-2024-8235) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes linked from the References section.

Kernel-based Virtual Machine (KVM) offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual machines using KVM.The packages also provide APIs for managing and interacting with the virtualized systems. Security Fix(es): * libvirt: stack use-after-free in virNetClientIOEventLoop() (CVE-2024-4418) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

A NULL pointer dereference vulnerability exists in the udevConnectListAllInterfaces() function of libvirt. This flaw occurs when detaching a host interface concurrently with collecting the list of interfaces via the virConnectListAllInterfaces API, potentially causing the libvirt daemon to crash and resulting in a denial of service. The issue affects multiple Red Hat Enterprise Linux 9 variants and related packages. A security update addressing this vulnerability is available from Red Hat.

An off-by-one error in the udevListInterfacesByStatus() function of libvirt can cause the libvirt daemon to crash when the number of interfaces exceeds the size of the names array. This vulnerability allows an unprivileged client to trigger a denial of service (DoS) by sending specially crafted data to the daemon. The issue does not allow privilege escalation or code execution but can disrupt virtualization services. A patch is available from Red Hat to address this issue.

An off-by-one error flaw was found in the udevListInterfacesByStatus() function in libvirt when the number of interfaces exceeds the size of the `names` array. This issue can be reproduced by sending specially crafted data to the libvirt daemon, allowing an unprivileged client to perform a denial of service attack by causing the libvirt daemon to crash.

MediumVulnerabilityUnited StatesGermanyChina+7#cve#cve-2024-1441