CVE-2024-7730

Publication date 15 August 2024

Last updated 30 May 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.4 · High

Score breakdown

A heap buffer overflow was found in the virtio-snd device in QEMU. When reading input audio in the virtio-snd input callback, virtio_snd_pcm_in_cb, the function did not check whether the iov can fit the data buffer. This issue can trigger an out-of-bounds write if the size of the virtio queue element is equal to virtio_snd_pcm_status, which makes the available space for audio data zero.

Status

Package Ubuntu Release Status
qemu 25.04 plucky
Fixed 9.0.2+ds-4ubuntu8
24.10 oracular
Fixed 1:9.0.2+ds-4ubuntu5.1
24.04 LTS noble
Fixed 1:8.2.2+ds-0ubuntu1.4
22.04 LTS jammy
Fixed 1:6.2+dfsg-2ubuntu6.24
20.04 LTS focal
Fixed 1:4.2-3ubuntu6.30
18.04 LTS bionic
Fixed 1:2.11+dfsg-1ubuntu7.42+esm2
16.04 LTS xenial
Fixed 1:2.5+dfsg-5ubuntu10.51+esm3
14.04 LTS trusty
Fixed 2.0.0+dfsg-2ubuntu1.47+esm4

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
qemu

Severity score breakdown

Parameter Value
Base score 7.4 · High
Attack vector Local
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H