CVSS: 6.3EPSS: 0%CPEs: 4EXPL: 0CVE-2023-2700 – libvirt: Memory leak in virPCIVirtualFunctionList cleanup
https://notcve.org/view.php?id=CVE-2023-2700
A vulnerability was found in libvirt. This security flaw ouccers due to repeatedly querying an SR-IOV PCI device's capabilities that exposes a memory leak caused by a failure to free the virPCIVirtualFunction array within the parent struct's g_autoptr cleanup. A vulnerability was found in libvirt. This security flaw occurs due to repeatedly querying an SR-IOV PCI device's capabilities that exposes a memory leak caused by a failure to free the virPCIVirtualFunction array within the parent struct's g_autoptr cleanup. • https://access.redhat.com/security/cve/CVE-2023-2700 https://bugzilla.redhat.com/show_bug.cgi?id=2203653 https://gitlab.com/libvirt/libvirt/-/commit/6425a311b8ad19d6f9c0b315bf1d722551ea3585#874a1e768ade6ceb4538931cbc06248e73223306 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVK6JKP36CHE7YAFDJNPNLTW4OWJJ7TQ https://security.netapp.com/advisory/ntap-20230706-0001 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 6.5EPSS: 0%CPEs: 21EXPL: 0CVE-2021-3975 – libvirt: segmentation fault during VM shutdown can lead to vdsm hang
https://notcve.org/view.php?id=CVE-2021-3975
A use-after-free flaw was found 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 down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash. Se ha encontrado un fallo de uso de memoria previamente liberada en libvirt. • https://access.redhat.com/security/cve/CVE-2021-3975 https://bugzilla.redhat.com/show_bug.cgi?id=2024326 https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7 https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html https://security.netapp.com/advisory/ntap-20221201-0002 https://ubuntu.com/security/CVE-2021-3975 • CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-4147
https://notcve.org/view.php?id=CVE-2021-4147
A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition. Se ha encontrado un fallo en el controlador libvirt libxl. Un huésped malicioso podría reiniciarse continuamente y causar que libvirtd en el host cerrarse o bloquearse, resultando en una condición de denegación de servicio • https://bugzilla.redhat.com/show_bug.cgi?id=2034195 https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html https://security.netapp.com/advisory/ntap-20220513-0004 • CWE-667: Improper Locking •
CVSS: 5.0EPSS: 0%CPEs: 2EXPL: 0CVE-2022-0897 – libvirt: missing locking in nwfilterConnectNumOfNWFilters can lead to denial of service
https://notcve.org/view.php?id=CVE-2022-0897
A flaw was found 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 stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd). Se ha encontrado un fallo en el controlador nwfilter de libvirt. • https://bugzilla.redhat.com/show_bug.cgi?id=2063883 https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html https://security.gentoo.org/glsa/202210-06 https://access.redhat.com/security/cve/CVE-2022-0897 • CWE-667: Improper Locking •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-3667 – libvirt: Improper locking on ACL failure in virStoragePoolLookupByTargetPath API
https://notcve.org/view.php?id=CVE-2021-3667
An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly released on ACL permission failure. Clients connecting to the read-write socket with limited ACL permissions could use this flaw to acquire the lock and prevent other users from accessing storage pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. Se ha encontrado un problema de bloqueo inapropiado en la API virStoragePoolLookupByTargetPath de libvirt. • https://bugzilla.redhat.com/show_bug.cgi?id=1986094 https://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87 https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87 https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html https://security.gentoo.org/glsa/202210-06 https://security.netapp.com/advisory/ntap-20220331-0005 https://access.redhat.com/security/cve/CVE-2021-3667 • CWE-667: Improper Locking •