180 lines
9.3 KiB
JSON
180 lines
9.3 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-2023-53651",
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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": "2025-10-07T15:16:59.660Z",
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"datePublished": "2025-10-07T15:19:47.832Z",
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"dateUpdated": "2026-10-30T12:17:32.625Z"
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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": "2026-10-30T12:17:32.625Z"
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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\nInput: exc3000 - properly stop timer on shutdown\n\nWe need to stop the timer on driver unbind or probe failures, otherwise\nwe get UAF/Oops."
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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 free is triggered by a local operation — driver unbind via sysfs, module unload, or a bind-induced probe failure — and the arming side is a local I2C touch controller; there is no network-reachable path to this driver.\nAC:L - The 100ms timer window can be attacked repeatedly by looping bind/unbind while the controller emits error frames, and the probe-failure variant leaves the timer armed deterministically during the multi-second vendor-query retry loop, so the attacker drives both sides of the race.\nPR:L - An unprivileged local user can reach the vulnerable object through the world-readable fw_version/model/type sysfs attributes that drive I2C vendor requests and touch-frame handling; consistent with kernel CNA precedent, driver unbind/remove UAFs of this class are scored at low privilege rather than root.\nUI:N - No victim action is required — the attacker performs the unbind/rebind itself, and the probe-failure variant fires autonomously when the controller misbehaves.\nS:U - The use-after-free is contained within the kernel's own security authority with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed slab object is reallocatable, and the timer callback reads `data->input` and MT slot state out of freed memory, while `expire_timers()` reads the call target from it — giving a path to disclose arbitrary kernel memory.\nI:H - `fn = timer->function` is loaded from the freed object and immediately called, and `detach_timer()` performs hlist pointer writes through it, yielding a controlled indirect call and write primitive suitable for privilege escalation.\nA:H - Even unexploited, the dangling timer dereferences freed memory 100ms after unbind or probe failure, producing the UAF/Oops reported in the commit message and crashing the kernel."
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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/input/touchscreen/exc3000.c"
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],
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"versions": [
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{
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"version": "7e577a17f2eefeef32f1106ebf91e7cd143ba654",
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"lessThan": "0914496ec5ca04dfafe1a5d562477029b1f92b96",
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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": "7e577a17f2eefeef32f1106ebf91e7cd143ba654",
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"lessThan": "526a177ac6353d65057eadb5d6edafc168f64484",
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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": "7e577a17f2eefeef32f1106ebf91e7cd143ba654",
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"lessThan": "bee57c20fc0ca5ef9b9a53a0335eab2ac9e9cae1",
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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": "7e577a17f2eefeef32f1106ebf91e7cd143ba654",
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"lessThan": "79c81d137d36f9635bbcbc3916c0cccb418a61dd",
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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/input/touchscreen/exc3000.c"
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],
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"versions": [
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{
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"version": "4.15",
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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": "4.15",
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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": "5.15.224",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.20",
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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": "6.2.3",
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"lessThanOrEqual": "6.2.*",
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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": "6.3",
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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": "4.15",
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"versionEndExcluding": "5.15.224"
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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": "4.15",
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"versionEndExcluding": "6.1.20"
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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": "4.15",
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"versionEndExcluding": "6.2.3"
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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": "4.15",
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"versionEndExcluding": "6.3"
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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/0914496ec5ca04dfafe1a5d562477029b1f92b96"
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},
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{
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"url": "https://git.kernel.org/stable/c/526a177ac6353d65057eadb5d6edafc168f64484"
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},
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{
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"url": "https://git.kernel.org/stable/c/bee57c20fc0ca5ef9b9a53a0335eab2ac9e9cae1"
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},
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{
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"url": "https://git.kernel.org/stable/c/79c81d137d36f9635bbcbc3916c0cccb418a61dd"
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}
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],
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"title": "Input: exc3000 - properly stop timer on shutdown",
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"x_generator": {
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} |