302 lines
15 KiB
JSON
302 lines
15 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-48717",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-06-20T11:09:39.050Z",
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"datePublished": "2024-06-20T11:13:09.959Z",
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"dateUpdated": "2026-08-05T08:51:54.801Z"
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},
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"containers": {
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"cna": {
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T08:51:54.801Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: max9759: fix underflow in speaker_gain_control_put()\n\nCheck for negative values of \"priv->gain\" to prevent an out of bounds\naccess. The concern is that these might come from the user via:\n -> snd_ctl_elem_write_user()\n -> snd_ctl_elem_write()\n -> kctl->put()"
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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"baseScore": 7.1,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The bug is reached only via local ALSA mixer ioctls on /dev/snd/controlC* (SNDRV_CTL_IOCTL_ELEM_WRITE → snd_ctl_elem_write → speaker_gain_control_put); it is not reachable from network packets or adjacent-link protocols.\nAC:L - An attacker who can open the control device can reliably pass a negative gain value and force an out-of-bounds table index; no race or attacker-uncontrollable condition is required beyond the MAX9759 device being present.\nPR:L - ALSA control nodes are usable by ordinary unprivileged users with audio-group or session ACL access (typical on desktops, SBCs, and embedded media devices), and the put path has no CAP_* checks requiring real root.\nUI:N - The attacker opens the sound control device and issues SNDRV_CTL_IOCTL_ELEM_WRITE themselves; no separate victim action is required.\nS:U - Impact is confined to the local kernel (OOB read / possible oops); this is not a VM escape, IOMMU bypass, or other security-authority boundary cross.\nC:H - A negative user value truncates to an attacker-chosen unsigned index into speaker_gain_table, yielding an unbounded out-of-bounds read of adjacent kernel memory; guidance treats such OOB reads as High confidentiality impact.\nI:N - The bug is a read-only out-of-bounds access of bool table entries used solely as GPIO arguments; there is no OOB write, UAF, or control-flow hijack primitive.\nA:H - Indexing far past the 4-entry static table (e.g. with -1 → UINT_MAX) faults on unmapped memory and oops/panics the kernel, fully denying availability."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"sound/soc/codecs/max9759.c"
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],
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{
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"version": "0",
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{
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"version": "4.19.228",
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"lessThanOrEqual": "4.19.*",
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},
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"version": "5.10.99",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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},
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{
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"version": "5.15.22",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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},
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{
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"version": "5.16.8",
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"lessThanOrEqual": "5.16.*",
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"status": "unaffected",
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{
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"version": "5.17",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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"title": "ASoC: max9759: fix underflow in speaker_gain_control_put()",
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"type": "ssvc",
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"content": {
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"id": "CVE-2022-48717",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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"Automatable": "no"
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"timestamp": "2024-09-10T17:11:22.587612Z"
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],
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