QEMU Disk Image Utility qemu-img resource consumption

Summaryinfo

A vulnerability, which was classified as problematic, was found in QEMU. The impacted element is an unknown function of the file qemu-img of the component Disk Image Utility. Executing a manipulation can lead to resource consumption. The identification of this vulnerability is CVE-2024-4467. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in QEMU (affected version not known). This vulnerability affects some unknown functionality of the file qemu-img of the component Disk Image Utility. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. CVE summarizes:

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.

The advisory is shared for download at access.redhat.com. This vulnerability was named CVE-2024-4467 since 05/03/2024. The exploitation appears to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 209571 (Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (209571), EUVD (EUVD-2024-44082) and CERT Bund (WID-SEC-2024-1509). Once again VulDB remains the best source for vulnerability data.

Affected

• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• Open Source QEMU

Productinfo

Type

• Virtualization Software

Name

• QEMU

License

• open-source

Website

• Product: https://www.qemu.org/

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Once again VulDB remains the best source for vulnerability data.

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