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vuln-cve/data/2024/49xxx/CVE-2024-49860.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2024-49860",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-10-21T12:17:06.017Z",
"datePublished": "2024-10-21T12:27:18.640Z",
"dateUpdated": "2026-08-05T11:40:08.879Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T11:40:08.879Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: sysfs: validate return type of _STR method\n\nOnly buffer objects are valid return values of _STR.\n\nIf something else is returned description_show() will access invalid\nmemory."
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
"baseScore": 7.3,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable code is reached by reading the world-readable sysfs attribute /sys/bus/acpi/devices/<dev>/description, which requires a local account (or a container/sandbox with /sys mounted). There is no network or physical-access requirement for the reading attacker.\nAC:L - On an affected platform a single read(2) of the sysfs file deterministically hits the type-confused dereference — no race, no memory-layout grooming, and no ASLR bypass is needed, and the read can be repeated at will since str_obj is cached at boot.\nPR:L - The description attribute is created via DEVICE_ATTR_RO (mode 0444) under a world-traversable /sys/bus/acpi/devices/ tree, so any unprivileged local user can read it; no capability, user namespace, or root access is required.\nUI:N - Exploitation consists solely of the attacker opening and reading a sysfs file; no victim action, mount, or configuration change is involved.\nS:U - The invalid access and its consequences are entirely within the kernel's own security authority — there is no hypervisor, IOMMU, or other security-boundary crossing.\nC:H - The type confusion feeds a firmware-supplied pointer and length into utf16s_to_utf8s(), whose output is copied straight to userspace — yielding an out-of-bounds heap read past the ACPI object (STRING case), disclosure of raw kernel pointers from the elements array (PACKAGE case), or a fully controlled arbitrary-address read (PROCESSOR/pblk_address on 64-bit, INTEGER on 32-bit), up to 4095 bytes per read and repeatable.\nI:L - No write primitive exists — the output is correctly bounded to the sysfs page — but the confusion makes the kernel dereference a firmware-controlled address that is semantically an I/O address, so reads landing on direct-mapped MMIO can alter device state through read-side-effect registers, a limited and non-targeted modification.\nA:H - The confused pointer is a NULL/low address in the POWER case and an arbitrary or out-of-bounds address in the others, so an unprivileged read reliably produces a kernel oops — a full panic on the panic_on_oops configurations common in embedded, automotive, and production deployments."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/acpi/device_sysfs.c"
],
"versions": [
{
"version": "d1efe3c324ead77d3f6cd85093b50f6bd2e17aba",
"lessThan": "92fd5209fc014405f63a7db79802ca4b01dc0c05",
"status": "affected",
"versionType": "git"
},
{
"version": "d1efe3c324ead77d3f6cd85093b50f6bd2e17aba",
"lessThan": "2364b6af90c6b6d8a4783e0d3481ca80af699554",
"status": "affected",
"versionType": "git"
},
{
"version": "d1efe3c324ead77d3f6cd85093b50f6bd2e17aba",
"lessThan": "4b081991c4363e072e1748efed0bbec8a77daba5",
"status": "affected",
"versionType": "git"
},
{
"version": "d1efe3c324ead77d3f6cd85093b50f6bd2e17aba",
"lessThan": "0cdfb9178a3bba843c95c2117c82c15f1a64b9ce",
"status": "affected",
"versionType": "git"
},
{
"version": "d1efe3c324ead77d3f6cd85093b50f6bd2e17aba",
"lessThan": "5c8d007c14aefc3f2ddf71e4c40713733dc827be",
"status": "affected",
"versionType": "git"
},
{
"version": "d1efe3c324ead77d3f6cd85093b50f6bd2e17aba",
"lessThan": "f0921ecd4ddc14646bb5511f49db4d7d3b0829f0",
"status": "affected",
"versionType": "git"
},
{
"version": "d1efe3c324ead77d3f6cd85093b50f6bd2e17aba",
"lessThan": "f51e5a88f2e7224858b261546cf6b3037dfb1323",
"status": "affected",
"versionType": "git"
},
{
"version": "d1efe3c324ead77d3f6cd85093b50f6bd2e17aba",
"lessThan": "f51f711d36e61fbb87c67b524fd200e05172668d",
"status": "affected",
"versionType": "git"
},
{
"version": "d1efe3c324ead77d3f6cd85093b50f6bd2e17aba",
"lessThan": "4bb1e7d027413835b086aed35bc3f0713bc0f72b",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/acpi/device_sysfs.c"
],
"versions": [
{
"version": "3.7",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.7",
"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": "3.7",
"versionEndExcluding": "4.19.323"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.7",
"versionEndExcluding": "5.4.285"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.7",
"versionEndExcluding": "5.10.227"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.7",
"versionEndExcluding": "5.15.168"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.7",
"versionEndExcluding": "6.1.113"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.7",
"versionEndExcluding": "6.6.54"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.7",
"versionEndExcluding": "6.10.13"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.7",
"versionEndExcluding": "6.11.2"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.7",
"versionEndExcluding": "6.12"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/92fd5209fc014405f63a7db79802ca4b01dc0c05"
},
{
"url": "https://git.kernel.org/stable/c/2364b6af90c6b6d8a4783e0d3481ca80af699554"
},
{
"url": "https://git.kernel.org/stable/c/4b081991c4363e072e1748efed0bbec8a77daba5"
},
{
"url": "https://git.kernel.org/stable/c/0cdfb9178a3bba843c95c2117c82c15f1a64b9ce"
},
{
"url": "https://git.kernel.org/stable/c/5c8d007c14aefc3f2ddf71e4c40713733dc827be"
},
{
"url": "https://git.kernel.org/stable/c/f0921ecd4ddc14646bb5511f49db4d7d3b0829f0"
},
{
"url": "https://git.kernel.org/stable/c/f51e5a88f2e7224858b261546cf6b3037dfb1323"
},
{
"url": "https://git.kernel.org/stable/c/f51f711d36e61fbb87c67b524fd200e05172668d"
},
{
"url": "https://git.kernel.org/stable/c/4bb1e7d027413835b086aed35bc3f0713bc0f72b"
}
],
"title": "ACPI: sysfs: validate return type of _STR method",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2024-49860",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-10-21T12:55:46.676497Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2024-10-21T13:04:10.485Z"
}
},
{
"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": "2025-11-03T22:22:30.053Z"
}
}
]
}
}
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