Improper access control in QEMU - CVE-2019-8934

Vulnerability identifier: #VU18275

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2019-8934

CWE-ID: CWE-284

Exploitation vector: Local access

Exploit availability: No public exploit available

Vendor: QEMU

Affected software:
QEMU

The vulnerability allows a local user to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions in the hw/ppc/spapr.c in the way hypervisor shares the /proc/device-tree/system-id and /proc/device-tree/model system attributes. A local user from guest operating system can gain access to sensitive information on the host operating system.

Install updates from vendor's website.

• http://www.openwall.com/lists/oss-security/2019/02/21/1
• https://lists.gnu.org/archive/html/qemu-devel/2019-02/msg04821.html