{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-42236", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-30T07:40:12.252Z", "datePublished": "2024-08-07T15:14:25.642Z", "dateUpdated": "2026-08-05T11:36:01.503Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:36:01.503Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: configfs: Prevent OOB read/write in usb_string_copy()\n\nUserspace provided string 's' could trivially have the length zero. Left\nunchecked this will firstly result in an OOB read in the form\n`if (str[0 - 1] == '\\n') followed closely by an OOB write in the form\n`str[0 - 1] = '\\0'`.\n\nThere is already a validating check to catch strings that are too long.\nLet's supply an additional check for invalid strings that are too short." } ], "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 input is a local `write(2)` to a USB gadget configfs attribute file (`/sys/kernel/config/usb_gadget/.../manufacturer`), not data from a USB peer or the network — no hardware, UDC binding, or physical access is needed.\nAC:L - A single deterministic `write(fd, \"\\0\", 1)` always drives `strlen()` to 0 and performs the `str[-1]` out-of-bounds access; there is no race and no condition outside the attacker's control, and heap grooming for the OOB write is attacker-driven via repeated gadget/string alloc-free cycles.\nPR:L - Some local access to the gadget configfs attributes is required, and these files are routinely delegated to non-root identities (Android chowns `/config/usb_gadget` to system:system for the non-root USB gadget HAL; embedded images commonly group-delegate it), so an unprivileged/low-privileged local process can reach the path.\nUI:N - The attacker performs the configfs write themselves; no victim action, mount, or interaction of any kind is needed.\nS:U - The out-of-bounds read and write stay within kernel heap memory managed by the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The bug is an out-of-bounds heap read plus heap corruption of an adjacent slab object, and such corruption is leveragable for information disclosure once the attacker grooms `kmalloc-128` to place a chosen victim object before the string buffer.\nI:H - `str[-1] = '\\0'` is a genuine out-of-bounds heap write that clears the trailing byte of the neighbouring `kmalloc-128` object — an attacker-groomable NUL-byte poisoning primitive that corrupts kernel data structures.\nA:H - The OOB access can fault on an unmapped/guard page (KFENCE, DEBUG_PAGEALLOC) or trip KASAN, and clearing a byte of an adjacent live slab object readily leads to a later oops or panic." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/gadget/configfs.c" ], "versions": [ { "version": "88af8bbe4ef781031ad3370847553f3b42ba0076", "lessThan": "a444c3fc264119801575ab086e03fb4952f23fd0", "status": "affected", "versionType": "git" }, { "version": "88af8bbe4ef781031ad3370847553f3b42ba0076", "lessThan": "c95fbdde87e39e5e0ae27f28bf6711edfb985caa", "status": "affected", "versionType": "git" }, { "version": "88af8bbe4ef781031ad3370847553f3b42ba0076", "lessThan": "e8474a10c535e6a2024c3b06e37e4a3a23beb490", "status": "affected", "versionType": "git" }, { "version": "88af8bbe4ef781031ad3370847553f3b42ba0076", "lessThan": "72b8ee0d9826e8ed00e0bdfce3e46b98419b37ce", "status": "affected", "versionType": "git" }, { "version": "88af8bbe4ef781031ad3370847553f3b42ba0076", "lessThan": "2d16f63d8030903e5031853e79d731ee5d474e70", "status": "affected", "versionType": "git" }, { "version": "88af8bbe4ef781031ad3370847553f3b42ba0076", "lessThan": "d1205033e912f9332c1dbefa812e6ceb0575ce0a", "status": "affected", "versionType": "git" }, { "version": "88af8bbe4ef781031ad3370847553f3b42ba0076", "lessThan": "eecfefad0953b2f31aaefa058f7f348ff39c4bba", "status": "affected", "versionType": "git" }, { "version": "88af8bbe4ef781031ad3370847553f3b42ba0076", "lessThan": "6d3c721e686ea6c59e18289b400cc95c76e927e0", "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/usb/gadget/configfs.c" ], "versions": [ { "version": "3.10", "status": "affected" }, { "version": "0", "lessThan": "3.10", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.318", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.280", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.222", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.163", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.100", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.41", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.10", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "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": "3.10", "versionEndExcluding": "4.19.318" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "5.4.280" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "5.10.222" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "5.15.163" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.1.100" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.6.41" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.9.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a444c3fc264119801575ab086e03fb4952f23fd0" }, { "url": "https://git.kernel.org/stable/c/c95fbdde87e39e5e0ae27f28bf6711edfb985caa" }, { "url": "https://git.kernel.org/stable/c/e8474a10c535e6a2024c3b06e37e4a3a23beb490" }, { "url": "https://git.kernel.org/stable/c/72b8ee0d9826e8ed00e0bdfce3e46b98419b37ce" }, { "url": "https://git.kernel.org/stable/c/2d16f63d8030903e5031853e79d731ee5d474e70" }, { "url": "https://git.kernel.org/stable/c/d1205033e912f9332c1dbefa812e6ceb0575ce0a" }, { "url": "https://git.kernel.org/stable/c/eecfefad0953b2f31aaefa058f7f348ff39c4bba" }, { "url": "https://git.kernel.org/stable/c/6d3c721e686ea6c59e18289b400cc95c76e927e0" } ], "title": "usb: gadget: configfs: Prevent OOB read/write in usb_string_copy()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-42236", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:14:04.317460Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:32.140Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:02:37.767Z" } } ] } }