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.
総合評価: CVE-2024-7730 は低リスク(37.1/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.29%、21 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.03% | 0.29% | +0.27% |
| 2 | 2025-12-20 | 0.12% | 0.03% | -0.10% |
| 3 | 2025-11-21 | — | 0.12% | — |
EPSS の全履歴 (全 8 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.4 | 3.1 | HIGH |
|
1.4 | 5.9 | [email protected] |
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2024-7730: 1 source package rows (qemu); 77 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 77. | https://security.alpinelinux.org/vuln/CVE-2024-7730 |
debian
|
not yet assigned | CVE-2024-7730 not yet assigned priority: Debian including 1 source packages (qemu), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. | https://security-tracker.debian.org/tracker/CVE-2024-7730 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2024-7730 |
suse
|
medium | CVE-2024-7730 severity moderate: SUSE including 60 source package names (qemu, qemu-SLOF, …), 1126 product×package rows across 46 product lines (SUSE Linux Enterprise High Performance Computing 12 SP5, SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS, … (46 product lines)): Known Not Affected 1001, Will Not Fix 125. | https://www.suse.com/security/cve/CVE-2024-7730/ |
ubuntu
|
medium | CVE-2024-7730 medium priority: Ubuntu including 1 source packages (qemu), 10 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): released 10. | https://ubuntu.com/security/CVE-2024-7730 |
| URL | タグ |
|---|---|
| https://access.redhat.com/security/cve/CVE-2024-7730 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2304289 | Issue Tracking Third Party Advisory |