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vuln-cve/data/2024/47xxx/CVE-2024-47698.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2024-47698",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-09-30T16:00:12.944Z",
"datePublished": "2024-10-21T11:53:35.311Z",
"dateUpdated": "2026-08-05T11:39:31.511Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T11:39:31.511Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: media: dvb-frontends/rtl2832: fix an out-of-bounds write error\n\nEnsure index in rtl2832_pid_filter does not exceed 31 to prevent\nout-of-bounds access.\n\ndev->filters is a 32-bit value, so set_bit and clear_bit functions should\nonly operate on indices from 0 to 31. If index is 32, it will attempt to\naccess a non-existent 33rd bit, leading to out-of-bounds access.\nChange the boundary check from index > 32 to index >= 32 to resolve this\nissue.\n\n[hverkuil: added fixes tag, rtl2830_pid_filter -> rtl2832_pid_filter in logmsg]"
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable code is reached through DMX_SET_PES_FILTER/DMX_ADD_PID ioctls on the /dev/dvb/adapterN/demuxM character device, which requires local access to the system. No network or remote data feeds into the index parameter.\nAC:L - On a system with an RTL2832U DVB-T tuner attached and hardware PID filtering active, the attacker drives the filter-index path directly and deterministically via repeated ioctls, with no race to win and no memory layout to groom.\nPR:L - No capability check exists anywhere along the dmxdev/dvb_usb_core/rtl2832 path; the only gate is DVB device-node permissions, which grant access to ordinary users in the video group on desktops and to unprivileged media processes on embedded receivers and set-top boxes.\nUI:N - Once the tuner device is present and bound, the attacker issues the demux ioctls entirely on their own; no victim action is needed to trigger the out-of-bounds write.\nS:U - The out-of-bounds write corrupts kernel memory within the driver's own security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - Out-of-bounds writes past the intended 32-bit filter field corrupt adjacent kernel state, and memory corruption of this class is conventionally treated as leverageable into read primitives and kernel information disclosure.\nI:H - This is a direct out-of-bounds write: set_bit/clear_bit operate beyond the 32-bit dev->filters field, and the stray regmap_bulk_write places attacker-supplied PID bytes into an unintended demod register.\nA:H - Corrupting memory beyond the intended field, including the adjacent slave_ts control flag, can destabilize the driver and the kernel, and any such out-of-bounds write is treated as capable of producing a crash or oops."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/media/dvb-frontends/rtl2832.c"
],
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"versionType": "git"
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"status": "affected",
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"status": "affected",
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{
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"lessThan": "8ae06f360cfaca2b88b98ca89144548b3186aab1",
"status": "affected",
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}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/media/dvb-frontends/rtl2832.c"
],
"versions": [
{
"version": "4.0",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.0",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.323",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.285",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.227",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.168",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.113",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.54",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.10.13",
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.11.2",
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.0",
"versionEndExcluding": "4.19.323"
},
{
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"references": [
{
"url": "https://git.kernel.org/stable/c/7065c05c6d58b9b9a98127aa14e9a5ec68173918"
},
{
"url": "https://git.kernel.org/stable/c/49b33c38d202d3327dcfd058e27f541dcc308b92"
},
{
"url": "https://git.kernel.org/stable/c/6ae3b9aee42616ee93c4585174f40c767828006d"
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{
"url": "https://git.kernel.org/stable/c/a879b6cdd48134a3d58949ea4f075c75fa2d7d71"
},
{
"url": "https://git.kernel.org/stable/c/15bea004e939d938a6771dfcf2a26cc899ffd20a"
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{
"url": "https://git.kernel.org/stable/c/527ab3eb3b0b4a6ee00e183c1de6a730239e2835"
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{
"url": "https://git.kernel.org/stable/c/66dbe0df6eccc7ee53a2c35016ce81e13b3ff447"
},
{
"url": "https://git.kernel.org/stable/c/bedd42e07988dbdd124b23e758ffef7a681b9c60"
},
{
"url": "https://git.kernel.org/stable/c/8ae06f360cfaca2b88b98ca89144548b3186aab1"
}
],
"title": "drivers: media: dvb-frontends/rtl2832: fix an out-of-bounds write error",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2024-47698",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-10-21T13:04:57.159768Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2024-10-21T13:14:14.071Z"
}
},
{
"title": "CVE Program Container",
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T22:21:04.372Z"
}
}
]
}
}
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