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CVE-2019-10166

Published: 20 June 2019

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.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
libvirt
Launchpad, Ubuntu, Debian
bionic
Released (4.0.0-1ubuntu8.12)
cosmic
Released (4.6.0-2ubuntu3.8)
disco
Released (5.0.0-1ubuntu2.4)
trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)
Patches:
upstream: https://libvirt.org/git/?p=libvirt.git;a=commit;h=db0b78457f183e4c7ac45bc94de86044a1e2056a (5.4)
upstream: http://libvirt.org/git/?p=libvirt.git;a=commit;h=a064d492272bcb0029b140ec4e18fce1ac0ec5b2 (5.0)
upstream: http://libvirt.org/git/?p=libvirt.git;a=commit;h=00e673c93fc3d0cfed274cc7a1ec2c52260c8262 (4.6)
upstream: http://libvirt.org/git/?p=libvirt.git;a=commit;h=d9a1f3debad411756f53ab8ab81e44ab0bb50e0a (4.1)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H