Heap Buffer Overflow Discovered in QEMU's virtio-snd Device
CVE-2024-7730

7.8HIGH

Key Information:

Vendor

QEMU
Status
Qemu
Vendor
CVE Published:
14 November 2024

What is CVE-2024-7730?

A heap buffer overflow has been identified in the virtio-snd device of QEMU, specifically in the virtio_snd_pcm_in_cb function, which is invoked during audio input processing. The vulnerability arises from inadequate checks to ensure that the input/output vector (iov) can accommodate the data buffer's size. This oversight can lead to an out-of-bounds write scenario, particularly when a virtio queue element's size coincides with virtio_snd_pcm_status, resulting in no available space for audio data. It is critical for users of affected QEMU versions to assess their systems and apply necessary security measures.

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References

https://access.redhat.com/security/cve/CVE-2024-7730
https://bugzilla.redhat.com/show_bug.cgi?id=2304289

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

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