Withdrawn by the publisher.

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.

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.

Security update for libvirt

libvirt: arbitrary file read/exec via virDomainSaveImageGetXMLDesc API libvirt: virDomainManagedSaveDefineXML API exposed to readonly clients libvirt: arbitrary command execution via virConnectGetDomainCapabilities API libvirt: arbitrary command execution via virConnectBaselineHypervisorCPU and virConnectCompareHypervisorCPU APIs Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service

Security update for libvirt

Affected: Ubuntu:18.04:LTS: libvirt

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.

Ein lokaler Angreifer kann mehrere Schwachstellen in libvirt ausnutzen, um beliebigen Programmcode mit den Rechten des Dienstes auszuführen.