247 lines
13 KiB
JSON
247 lines
13 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-2026-23178",
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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": "2026-01-13T15:37:45.984Z",
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"datePublished": "2026-02-14T16:27:10.108Z",
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"dateUpdated": "2026-10-19T18:25:34.295Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:20:29.229Z"
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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\nHID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()\n\n`i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data\ninto `ihid->rawbuf`.\n\nThe former can come from the userspace in the hidraw driver and is only\nbounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set\n`max_buffer_size` field of `struct hid_ll_driver` which we do not).\n\nThe latter has size determined at runtime by the maximum size of\ndifferent report types you could receive on any particular device and\ncan be a much smaller value.\n\nFix this by truncating `recv_len` to `ihid->bufsize - sizeof(__le16)`.\n\nThe impact is low since access to hidraw devices requires root."
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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:H/A:H",
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"baseScore": 7.8,
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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 vulnerability is triggered through the hidraw ioctl interface (/dev/hidrawN), requiring local system access to open the device file and issue an ioctl. I2C-HID devices are locally attached hardware (touchpads, touchscreens).\nAC:L - The attacker simply opens a hidraw device and issues a HIDIOCGFEATURE/HIDIOCGINPUT ioctl with a large size parameter. No race condition, special memory layout, or non-default configuration is needed to trigger the overflow.\nPR:L - While hidraw devices default to 0600 root:root, on desktop Linux systems with systemd/logind, udev uaccess rules grant some hidraw device access to the physically logged-in user without root privileges. On shared workstations or kiosks, a non-root user could trigger this.\nUI:N - No user interaction is required. The attacker opens the hidraw device file and issues the ioctl directly.\nS:U - The vulnerability is in the kernel and the impact (heap corruption) affects the kernel itself. No security boundary crossing (like VM escape) occurs.\nC:H - This is a heap buffer overflow of up to ~16KB past the allocated buffer. Heap corruption of this magnitude can be leveraged to read adjacent kernel heap objects, potentially disclosing sensitive kernel memory.\nI:H - The out-of-bounds write corrupts adjacent kernel heap objects. While the overflow content comes from the I2C device rather than being directly attacker-controlled, a 16KB heap overflow can corrupt critical kernel data structures, potentially enabling code execution through heap grooming techniques.\nA:H - A heap buffer overflow of up to ~16KB will corrupt adjacent kernel heap objects, reliably causing kernel crashes (oops/panic) from corrupted metadata or invalid pointer dereferences."
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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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"drivers/hid/i2c-hid/i2c-hid-core.c"
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],
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"versions": [
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{
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"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
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"lessThan": "f9c9ad89d845f88a1509e9d672f65d234425fde9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
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"lessThan": "cff3f619fd1cb40cdd89971df9001f075613d219",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
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"lessThan": "786ec171788bdf9dda38789163f1b1fbb47f2d1e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
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"lessThan": "2124279f1f8c32c1646ce98e75a1a39b23b7db76",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
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"lessThan": "2497ff38c530b1af0df5130ca9f5ab22c5e92f29",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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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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"drivers/hid/i2c-hid/i2c-hid-core.c"
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],
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"versions": [
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{
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"version": "5.18",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.18",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.163",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.124",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.70",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.10",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19",
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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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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.1.163"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.6.124"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.12.70"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.18.10"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.19"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/f9c9ad89d845f88a1509e9d672f65d234425fde9"
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},
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{
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"url": "https://git.kernel.org/stable/c/cff3f619fd1cb40cdd89971df9001f075613d219"
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},
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{
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"url": "https://git.kernel.org/stable/c/786ec171788bdf9dda38789163f1b1fbb47f2d1e"
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},
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{
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"url": "https://git.kernel.org/stable/c/2124279f1f8c32c1646ce98e75a1a39b23b7db76"
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},
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{
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"url": "https://git.kernel.org/stable/c/2497ff38c530b1af0df5130ca9f5ab22c5e92f29"
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}
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],
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"title": "HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-23178",
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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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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:06:40.043320Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-122",
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"description": "CWE-122 Heap-based Buffer Overflow"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T18:25:34.295Z"
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}
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}
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]
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}
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} |