Vulnerabilities (CVE)

Filtered by vendor Redhat Subscribe
Filtered by product Libvirt
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-3750 1 Redhat 2 Enterprise Linux, Libvirt 2023-08-02 N/A 5.3 MEDIUM
A flaw was found in libvirt. The virStoragePoolObjListSearch function does not return a locked pool as expected, resulting in a race condition and denial of service when attempting to lock the same object from another thread. This issue could allow clients connecting to the read-only socket to crash the libvirt daemon.
CVE-2022-0897 2 Netapp, Redhat 2 Ontap Select Deploy Administration Utility, Libvirt 2022-07-21 4.0 MEDIUM 4.3 MEDIUM
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).
CVE-2021-3667 2 Netapp, Redhat 3 Ontap Select Deploy Administration Utility, Enterprise Linux, Libvirt 2022-06-04 3.5 LOW 6.5 MEDIUM
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.
CVE-2021-3631 2 Netapp, Redhat 4 Ontap Select Deploy Administration Utility, Enterprise Linux, Libvirt and 1 more 2022-06-04 3.3 LOW 6.3 MEDIUM
A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.
CVE-2021-4147 2 Fedoraproject, Redhat 2 Fedora, Libvirt 2022-05-13 4.9 MEDIUM 6.5 MEDIUM
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.
CVE-2020-10701 1 Redhat 1 Libvirt 2022-05-13 4.0 MEDIUM 6.5 MEDIUM
A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response timeout. This flaw allows read-only connections to adjust the time that libvirt waits for the QEMU guest agent to respond to agent commands. Depending on the timeout value that is set, this flaw can make guest agent commands fail because the agent cannot respond in time. Unprivileged users with a read-only connection could abuse this flaw to set the response timeout for all guest agent messages to zero, potentially leading to a denial of service. This flaw affects libvirt versions before 6.2.0.
CVE-2020-14301 2 Netapp, Redhat 13 Ontap Select Deploy Administration Utility, Codeready Linux Builder, Enterprise Linux and 10 more 2022-05-13 4.0 MEDIUM 6.5 MEDIUM
An information disclosure vulnerability was found in libvirt in versions before 6.3.0. HTTP cookies used to access network-based disks were saved in the XML dump of the guest domain. This flaw allows an attacker to access potentially sensitive information in the domain configuration via the `dumpxml` command.
CVE-2021-3559 2 Netapp, Redhat 2 Ontap Select Deploy Administration Utility, Libvirt 2022-04-26 4.0 MEDIUM 6.5 MEDIUM
A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0. It only affects hosts with a PCI device and driver that supports mediated devices (e.g., GRID driver). This flaw could be used by an unprivileged client with a read-only connection to crash the libvirt daemon by executing the 'nodedev-list' virsh command. The highest threat from this vulnerability is to system availability.
CVE-2019-3886 2 Opensuse, Redhat 2 Leap, Libvirt 2021-11-02 4.8 MEDIUM 5.4 MEDIUM
An incorrect permissions check was discovered in libvirt 4.8.0 and above. The readonly permission was allowed to invoke APIs depending on the guest agent, which could lead to potentially disclosing unintended information or denial of service by causing libvirt to block.
CVE-2020-25637 1 Redhat 2 Enterprise Linux, Libvirt 2020-12-04 7.2 HIGH 6.7 MEDIUM
A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2020-12430 1 Redhat 2 Enterprise Linux, Libvirt 2020-06-16 4.0 MEDIUM 6.5 MEDIUM
An issue was discovered in qemuDomainGetStatsIOThread in qemu/qemu_driver.c in libvirt 4.10.0 though 6.x before 6.1.0. A memory leak was found in the virDomainListGetStats libvirt API that is responsible for retrieving domain statistics when managing QEMU guests. This flaw allows unprivileged users with a read-only connection to cause a memory leak in the domstats command, resulting in a potential denial of service.
CVE-2020-10703 1 Redhat 1 Libvirt 2020-06-16 4.0 MEDIUM 6.5 MEDIUM
A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.
CVE-2019-20485 2 Debian, Redhat 2 Debian Linux, Libvirt 2020-06-16 2.7 LOW 5.7 MEDIUM
qemu/qemu_driver.c in libvirt before 6.0.0 mishandles the holding of a monitor job during a query to a guest agent, which allows attackers to cause a denial of service (API blockage).
CVE-2017-2635 1 Redhat 1 Libvirt 2019-10-09 4.0 MEDIUM 6.5 MEDIUM
A NULL pointer deference flaw was found in the way libvirt from 2.5.0 to 3.0.0 handled empty drives. A remote authenticated attacker could use this flaw to crash libvirtd daemon resulting in denial of service.
CVE-2019-3840 2 Opensuse, Redhat 2 Leap, Libvirt 2019-05-05 3.5 LOW 6.3 MEDIUM
A NULL pointer dereference flaw was discovered in libvirt before version 5.0.0 in the way it gets interface information through the QEMU agent. An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service.
CVE-2014-3672 2 Redhat, Xen 2 Libvirt, Xen 2017-09-08 2.1 LOW 6.5 MEDIUM
The qemu implementation in libvirt before 1.3.0 and Xen allows local guest OS users to cause a denial of service (host disk consumption) by writing to stdout or stderr.
CVE-2015-5247 2 Canonical, Redhat 2 Ubuntu Linux, Libvirt 2016-04-18 4.0 MEDIUM 6.5 MEDIUM
The virStorageVolCreateXML API in libvirt 1.2.14 through 1.2.19 allows remote authenticated users with a read-write connection to cause a denial of service (libvirtd crash) by triggering a failed unlink after creating a volume on a root_squash NFS pool.
CVE-2011-4600 2 Canonical, Redhat 2 Ubuntu Linux, Libvirt 2016-04-18 4.3 MEDIUM 5.9 MEDIUM
The networkReloadIptablesRules function in network/bridge_driver.c in libvirt before 0.9.9 does not properly handle firewall rules on bridge networks when libvirtd is restarted, which might allow remote attackers to bypass intended access restrictions via a (1) DNS or (2) DHCP query.