RHEL 10 : libvirt (RHSA-2026:68510)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:68510 advisory. The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In...

RHEL 9 : libvirt (RHSA-2026:68509)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:68509 advisory. The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In...

RHEL 9 : libvirt (RHSA-2026:68511)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:68511 advisory. The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In...

OESA-2026-3834 libvirt security update

Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux and other OSes. The main package includes the libvirtd server exporting the virtualization support. Security Fixes: A flaw was found in libvirt. During storage volume clone or convert operations,...

OESA-2026-3833 libvirt security update

Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux and other OSes. The main package includes the libvirtd server exporting the virtualization support. Security Fixes: A flaw was found in libvirt. During storage volume clone or convert operations,...

OESA-2026-3832 libvirt security update

Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux and other OSes. The main package includes the libvirtd server exporting the virtualization support. Security Fixes: A flaw was found in libvirt. An unprivileged local user could exploit an integer...

OESA-2026-3831 libvirt security update

Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux and other OSes. The main package includes the libvirtd server exporting the virtualization support. Security Fixes: A flaw was found in libvirt. During storage volume clone or convert operations,...

Astra Linux – Vulnerability in libvirt

A vulnerability was discovered in libvirt. This security flaw occurs due to repeated queries of the capabilities of an SR-IOV PCI device, which leads to a memory leak caused by failure to free the virPCIVirtualFunction array within the parent struct’s gautoptr cleanup...

Astra Linux – Vulnerability in libvirt

A flaw was discovered in libvirt. The virStoragePoolObjListSearch function does not return a locked pool as expected, leading to a race condition and a denial of service when attempting to lock the same object from another thread. This issue could cause clients connecting to the read-only socket ...

Astra Linux – Vulnerability in libvirt

A “off-by-one” error flaw was discovered in the udevListInterfacesByStatus function in libvirt, where 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...

Astra Linux – Vulnerability in libvirt

A flaw was discovered in libvirt during its generation of SELinux MCS category pairs for virtual machines’ dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breach of sVirt confinement. The greatest threat posed by this vulnerability...

Astra Linux – Vulnerability in libvirt

A use-after-free flaw was discovered in libvirt. The qemuMonitorUnregister function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting...

Astra Linux – Vulnerability in libvirt

A NULL pointer dereference flaw was discovered in the udevConnectListAllInterfaces function within libvirt. This issue can occur when detaching a host interface while simultaneously collecting the list of interfaces using the virConnectListAllInterfaces API. This flaw could be exploited to carry...

Astra Linux – Vulnerability in libvirt

A improper locking issue was detected in the virStoragePoolLookupByTargetPath API of libvirt. This issue occurs in the storagePoolLookupByTargetPath function, where a locked virStoragePoolObj object is not properly released in case of an ACL permission failure. Clients connecting to the read-writ...

Astra Linux – Vulnerability in libvirt

A flaw was discovered in the libvirt libxl driver. A malicious guest could continuously reboot itself, causing libvirtd on the host to become locked out or crash, resulting in a denial-of-service condition...

Astra Linux – Vulnerability in libvirt

A flaw was discovered in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver-nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to prevent another thread from concurrently modifying the driver-nwfilters object...

Astra Linux – Vulnerability in libvirt

A issue was discovered in qemuDomainGetStatsIOThread in qemu/qemudriver.c within libvirt version 4.10.0 through 6.x, prior to 6.1.0. A memory leak was identified in the virDomainListGetStats libvirt API, which is responsible for retrieving domain statistics when managing QEMU guests. This flaw...

Astra Linux – Vulnerability in libvirt

A flaw was discovered in the RPC library APIs of libvirt. The RPC server deserialization code allocates memory for arrays before performing the negative length check by the C API entry points. Passing a negative length to the gnew0 function results in a crash because the negative length is treate...

Security update for libvirt

This update for libvirt fixes the following issues: CVE-2026-18917: Integer overflow in NodeGetFreePages RPC handler leading to heap buffer overflow bsc1275863. CVE-2026-61477: newline injection in network XML DNS TXT/SRV fields allows dnsmasq config directive injection bsc1274576. CVE-2026-63622...

SUSE-SU-2026:4141-1 Security update for libvirt

This update for libvirt fixes the following issues: - CVE-2026-18917: Integer overflow in NodeGetFreePages RPC handler leading to heap buffer overflow bsc1275863. - CVE-2026-61477: newline injection in network XML DNS TXT/SRV fields allows dnsmasq config directive injection bsc1274576. -...