| Name | CVE-2024-7730 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| qemu (PTS) | bullseye | 1:5.2+dfsg-11+deb11u3 | vulnerable |
| bullseye (security) | 1:5.2+dfsg-11+deb11u4 | vulnerable | |
| bookworm | 1:7.2+dfsg-7+deb12u13 | vulnerable | |
| sid, trixie | 1:10.0.0+ds-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| qemu | source | (unstable) | 1:9.1.0+ds-1 |
[bookworm] - qemu <no-dsa> (Minor issue)
[bullseye] - qemu <postponed> (Minor issue; can be fixed in next update)
https://lore.kernel.org/qemu-devel/virtio-snd-fuzz-2427-fix-v1-manos.pitsidianakis@linaro.org/
https://gitlab.com/qemu-project/qemu/-/issues/2427
Fixed by: https://gitlab.com/qemu-project/qemu/-/commit/98e77e3dd8dd6e7aa9a7dffa60f49c8c8a49d4e3 (v9.1.0-rc0)