Improper access control in libvirt - CVE-2019-10161

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Main Vulnerability Database Vulnerabilities #VU18879

Improper access control in libvirt - CVE-2019-10161

Published: June 23, 2019


Vulnerability identifier: #VU18879
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-10161
CWE-ID: CWE-284
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions in libvirtd that allow read-only clients to use the virDomainSaveImageGetXMLDesc() API. A local user with read-only access to the libvirtd socket can confirm presence of arbitrary files on the system, trigger denial of service condition or execute arbitrary applications on the affected system.


Affected software

libvirt
Gentoo Linux
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - Extended Update Support
Red Hat Enterprise Linux for x86_64
Opensuse
Fedora
Red Hat Gluster Storage Server for On-premise
libvirt (Alpine package)
redhat-release-virtualization-host (Red Hat package)
redhat-virtualization-host (Red Hat package)
libvirt (Red Hat package)
libvirt
Red Hat Virtualization Host
Red Hat Enterprise Linux Advanced Virtualization

How to mitigate CVE-2019-10161

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

libvirt (Alpine package) - update to 5.5.0-r0
redhat-release-virtualization-host (Red Hat package) - update to 4.3.4-1.el7ev
redhat-virtualization-host (Red Hat package) - update to 4.3.4-20190620.3.el7_6
libvirt (Red Hat package) - update to 4.5.0-10.el7_6.12
libvirt - addressed in versions 4.7.0-5.fc29, 5.1.0-9.fc30

External References

Related Security Bulletins