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CVE-2019-20485

libvirt: Potential DoS by holding a monitor job while querying QEMU guest-agent

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).

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Redhat
Products
Debian Linux Fedora Advanced Virtualization and 2 more
CVE-2019-10168

libvirt: arbitrary command execution via virConnectBaselineHypervisorCPU and virConnectCompareHypervisorCPU APIs

The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs, 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accept an "emulator" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Advanced Virtualization Enterprise Linux Enterprise Linux Desktop and 7 more
CVE-2019-10167

libvirt: arbitrary command execution via virConnectGetDomainCapabilities API

The virConnectGetDomainCapabilities() libvirt API, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accepts an "emulatorbin" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Advanced Virtualization Enterprise Linux Enterprise Linux Desktop and 7 more
CVE-2019-10166

libvirt: virDomainManagedSaveDefineXML API exposed to readonly clients

It was discovered that libvirtd, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, would permit readonly clients to use the virDomainManagedSaveDefineXML() API, which would permit them to modify managed save state files. If a managed save had already been created by a privileged user, a local attacker could modify this file such that libvirtd would execute an arbitrary program when the domain was resumed.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Advanced Virtualization Enterprise Linux Enterprise Linux Desktop and 7 more
CVE-2019-10161

libvirt: arbitrary file read/exec via virDomainSaveImageGetXMLDesc API

It was discovered that libvirtd before versions 4.10.1 and 5.4.1 would permit read-only clients to use the virDomainSaveImageGetXMLDesc() API, specifying an arbitrary path which would be accessed with the permissions of the libvirtd process. An attacker with access to the libvirtd socket could use this to probe the existence of arbitrary files, cause denial of service or cause libvirtd to execute arbitrary programs.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Redhat
Products
Ubuntu Linux Advanced Virtualization Enterprise Linux and 3 more
CVE-2019-10132

libvirt: wrong permissions in systemd admin-sock due to missing SocketMode parameter

A vulnerability was found in libvirt >= 4.1.0 in the virtlockd-admin.socket and virtlogd-admin.socket systemd units. A missing SocketMode configuration parameter allows any user on the host to connect using virtlockd-admin-sock or virtlogd-admin-sock and perform administrative tasks against the virtlockd and virtlogd daemons.

CVSS 3.0 · 8.8 High EPSS 1.4% KEV · Not listed
Vendors
Fedoraproject Redhat
Products
Fedora Advanced Virtualization Enterprise Linux and 1 more