Qemu-kvm: 'qemu-img info' leads to host file read/write

7.8 CVSS

Vulnerability Description

A flaw was found in the QEMU disk image utility (qemu-img) 'info' command. A specially crafted image file containing a `json:{}` value describing block devices in QMP could cause the qemu-img process on the host to consume large amounts of memory or CPU time, leading to denial of service or read/write to an existing external file.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Red Hat would like to thank Martin Kaesberger for reporting this issue.

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Affected Vendor

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Affected Software

Advanced Virtualization for RHEL 8.2.1, Advanced Virtualization for RHEL 8.4.0.EUS, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8 Advanced Virtualization, Red Hat OpenShift Virtualization 4

Vulnerable Versions:

4.0.0, 8020120240708124623.863bb0db, 8040020240708093550.522a0ee4, 8100020240704072441.489197e6, 8040020240703100448.522a0ee4, 8060020240703092415.ad008a3a, 8080020240703085245.63b34585, 17:8.2.0-11.el9_4.4, 17:6.2.0-11.el9_0.9, 17:7.2.0-14.el9_2.11