{"id":"CVE-2024-7730","aliases":["AZL-60907","BELL-CVE-2024-7730","DEBIAN-CVE-2024-7730","EUVD-2024-48607","GHSA-pfxg-46gm-p35h","OESA-2024-2414","UBUNTU-CVE-2024-7730","USN-7094-1"],"status":"published","title":"Qemu-kvm: virtio-snd: heap buffer overflow in virtio_snd_pcm_in_cb()","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.","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00274,"percentile":0.19873,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122"],"published":"2024-08-14T05:56:34.862632Z","modified":"2026-11-02T12:03:12Z","fixes":[{"ecosystem":"Azure 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hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 8 advanced virtualization"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2024-7730","tags":["vdb-entry","x_refsource_REDHAT","Third Party Advisory","advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2304289","tags":["issue-tracking","x_refsource_REDHAT","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-7730","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-pfxg-46gm-p35h"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2024-7730","tags":["advisory"]},{"url":"https://access.redhat.com/downloads/content/package-browser/","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/7xxx/CVE-2024-7730.json","tags":["advisory"]},{"url":"https://gitlab.com/qemu-project/qemu","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-7730","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-2414","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-7730","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-7730","tags":["report"]},{"url":"https://lore.kernel.org/qemu-devel/virtio-snd-fuzz-2427-fix-v1-manos.pitsidianakis@linaro.org/","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7094-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-20382","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-1983","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-7039","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-8608","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-13765","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-3592","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-3594","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-3019","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-4693","tags":["report"]},{"url":"https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/2084210","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-7730","title":"Qemu-kvm: virtio-snd: heap buffer overflow in virtio_snd_pcm_in_cb()","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.","status":"published","published":"2024-11-14T12:11:50.456Z","modified":"2024-11-14T19:32:39.807Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:34:20.673123Z"}],"euvd":[{"id":"EUVD-2024-48607","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.","status":"published","published":"2024-11-14T12:11:50Z","modified":"2024-11-14T19:32:39Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:05:00.369745Z"}],"ghsa":[{"id":"GHSA-pfxg-46gm-p35h","title":"A heap buffer overflow was found in the virtio-snd device in QEMU. When reading input audio in...","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.","status":"published","published":"2024-11-14T12:31:03Z","modified":"2024-11-14T12:31:08Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:58:50.242407Z"}],"nvd":[{"id":"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.","status":"published","published":"2024-11-14T12:15:18.857Z","modified":"2026-06-17T08:20:48.37Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:10:37.281254Z"}],"osv":[{"id":"BELL-CVE-2024-7730","status":"published","published":"2024-08-14T05:56:34.862632Z","modified":"2026-01-26T09:37:10.466779Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:21.227396Z"},{"id":"CVE-2024-7730","title":"Qemu-kvm: virtio-snd: heap buffer overflow in virtio_snd_pcm_in_cb()","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.","status":"published","published":"2024-11-14T12:11:50.456Z","modified":"2026-10-28T02:30:43.949661671Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:44:45.405014Z"},{"id":"DEBIAN-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.","status":"published","published":"2024-11-14T12:15:18.857Z","modified":"2026-11-02T12:03:12.551662161Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:44.747956Z"},{"id":"OESA-2024-2414","title":"qemu security update","description":"QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed.\r\n\r\nSecurity Fix(es):\r\n\r\nA 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.(CVE-2024-7730)","status":"published","published":"2024-11-15T11:07:53Z","modified":"2026-08-18T01:18:38.833154243Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:52:42.253598Z"},{"id":"UBUNTU-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.","status":"published","published":"2024-08-15T00:00:00Z","modified":"2026-02-04T04:24:07.290909Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:55:18.664792Z"},{"id":"AZL-60907","title":"CVE-2024-7730 affecting package qemu for versions less than 8.2.0-16","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.","status":"published","published":"2024-11-14T12:15:18Z","modified":"2026-04-21T04:49:55.558974Z","updated_at":"2026-11-02T15:28:07.517393Z"},{"id":"USN-7094-1","title":"qemu vulnerabilities","description":"It was discovered that QEMU incorrectly handled memory during certain VNC\noperations. A remote attacker could possibly use this issue to cause QEMU\nto consume resources, resulting in a denial of service. This issue only\naffected Ubuntu 14.04 LTS. (CVE-2019-20382)\n\nIt was discovered that QEMU incorrectly handled certain memory copy\noperations when loading ROM contents. If a user were tricked into running\nan untrusted kernel image, a remote attacker could possibly use this issue\nto run arbitrary code. This issue only affected Ubuntu 14.04 LTS.\n(CVE-2020-13765)\n\nAviv Sasson discovered that QEMU incorrectly handled Slirp networking. A\nremote attacker could use this issue to cause QEMU to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. This issue only\naffected Ubuntu 14.04 LTS. (CVE-2020-1983)\n\nIt was discovered that the SLiRP networking implementation of the QEMU\nemulator did not properly manage memory under certain circumstances. An\nattacker could use this to cause a heap-based buffer overflow or other out-\nof-bounds access, which can lead to a denial of service (application crash)\nor potential execute arbitrary code. This issue only affected\nUbuntu 14.04 LTS. (CVE-2020-7039)\n\nIt was discovered that the SLiRP networking implementation of the QEMU\nemulator misuses snprintf return values. An attacker could use this to\ncause a denial of service (application crash) or potentially execute\narbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-8608)\n\nIt was discovered that QEMU SLiRP networking incorrectly handled certain\nudp packets. An attacker inside a guest could possibly use this issue to\nleak sensitive information from the host. This issue only affected\nUbuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2021-3592, CVE-2021-3594)\n\nIt was discovered that QEMU had a DMA reentrancy issue, leading to a\nuse-after-free vulnerability. An attacker could possibly use this issue\nto cause a denial of service. This issue only affected Ubuntu 18.04 LTS,\nUbuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-3019)\n\nIt was discovered that QEMU had a flaw in Virtio PCI Bindings, leading\nto a triggerable crash via vhost_net_stop. An attacker inside a guest\ncould possibly use this issue to cause a denial of service. This issue\nonly affected Ubuntu 24.04 LTS and Ubuntu 24.10. (CVE-2024-4693)\n\nIt was discovered that QEMU incorrectly handled memory in virtio-sound,\nleading to a heap-based buffer overflow. An attacker could possibly use\nthis issue to cause a denial of service or execute arbitrary code. This\nissue only affected Ubuntu 24.04 LTS and Ubuntu 24.10. (CVE-2024-7730)\n","status":"published","published":"2024-11-08T01:42:12Z","modified":"2026-06-29T13:51:19.239499478Z","updated_at":"2026-11-02T16:58:18.876384Z"}]}}