CVE-2024-27410

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This leads to an overwrite\nof data in the wdev->u union for the interface type it\ncurrently has, causing cfg80211_change_iface() to do\nwrong things when switching.\n\nWe could probably allow setting an interface to mesh\nwhile setting the mesh ID at the same time by doing a\ndifferent order of operations here, but realistically\nthere's no userspace that's going to do this, so just\ndisallow changes in iftype when setting mesh ID."}], "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 vulnerability is triggered entirely through local interfaces \u2014 an nl80211 generic-netlink `NL80211_CMD_SET_INTERFACE` message to plant the corrupted length, then a local `SIOCGIWESSID` ioctl or `NL80211_CMD_GET_INTERFACE` to weaponize it. No radio frames or remote peer data are involved.\nAC:L - Exploitation is fully deterministic: a single netlink message containing `NL80211_ATTR_IFTYPE=MESH_POINT`, a \u22655-byte `NL80211_ATTR_MESH_ID`, and `NL80211_ATTR_4ADDR=1` on a down ADHOC interface reliably sets `wdev->u.ibss.ssid_len` to an attacker-chosen value and returns before the sanitizing memset. There is no race, no memory-layout dependency, and no condition outside the attacker's control.\nPR:L - `NL80211_CMD_SET_INTERFACE` is gated by `GENL_UNS_ADMIN_PERM`, the user-namespace-aware CAP_NET_ADMIN check, which an unprivileged user obtains via `unshare -Urn`; `mac80211_hwsim`'s radio-creation command is namespace-aware in the same way, giving a wiphy inside that namespace. The weaponizing steps (`SIOCGIWESSID`, `NL80211_CMD_GET_INTERFACE`) require no privileges at all.\nUI:N - The attacker performs every step \u2014 creating/selecting the interface, setting it to ADHOC while down, sending the malformed SET_INTERFACE, and issuing the read. No victim action is required.\nS:U - The type-confused write and the resulting heap overflow stay within the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The corrupted `ibss.ssid_len` (up to 255) causes up to ~223 bytes past the 32-byte SSID buffer to be copied to userspace via `NL80211_ATTR_SSID` and via the `SIOCGIWESSID` `copy_to_user()` from a 32-byte slab object, disclosing adjacent kernel memory including `wdev->links[]` heap pointers \u2014 well beyond a \"few bytes\" bounded read.\nI:H - `cfg80211_ibss_wext_giwessid()` performs an unchecked `memcpy` of up to 255 bytes into the 32-byte `kzalloc` buffer allocated by `ioctl_standard_iw_point()`, giving an out-of-bounds slab write of up to 223 bytes with partially attacker-influenced content \u2014 a classic heap-corruption primitive.\nA:H - The out-of-bounds write smashes adjacent kmalloc-32 objects, producing KASAN BUG reports, slab corruption and kernel panics; on mesh-capable wiphys the same bug additionally triggers a `WARN_ONCE` in `check_sdata_in_driver()` via a spurious `drv_leave_ibss()` on a down interface, which panics under `panic_on_warn`."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/wireless/nl80211.c"], "versions": [{"version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1", "lessThan": "930e826962d9f01dcd2220176134427358d112f2", "status": "affected", "versionType": "git"}, {"version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1", "lessThan": "177d574be4b58f832354ab1ef5a297aa0c9aa2df", "status": "affected", "versionType": "git"}, {"version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1", "lessThan": "a2add961a5ed25cfd6a74f9ffb9e7ab6d6ded838", "status": "affected", "versionType": "git"}, {"version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1", "lessThan": "f78c1375339a291cba492a70eaf12ec501d28a8e", "status": "affected", 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No radio frames or remote peer data are involved.\nAC:L - Exploitation is fully deterministic: a single netlink message containing `NL80211_ATTR_IFTYPE=MESH_POINT`, a \u22655-byte `NL80211_ATTR_MESH_ID`, and `NL80211_ATTR_4ADDR=1` on a down ADHOC interface reliably sets `wdev->u.ibss.ssid_len` to an attacker-chosen value and returns before the sanitizing memset. There is no race, no memory-layout dependency, and no condition outside the attacker's control.\nPR:L - `NL80211_CMD_SET_INTERFACE` is gated by `GENL_UNS_ADMIN_PERM`, the user-namespace-aware CAP_NET_ADMIN check, which an unprivileged user obtains via `unshare -Urn`; `mac80211_hwsim`'s radio-creation command is namespace-aware in the same way, giving a wiphy inside that namespace. The weaponizing steps (`SIOCGIWESSID`, `NL80211_CMD_GET_INTERFACE`) require no privileges at all.\nUI:N - The attacker performs every step \u2014 creating/selecting the interface, setting it to ADHOC while down, sending the malformed SET_INTERFACE, and issuing the read. No victim action is required.\nS:U - The type-confused write and the resulting heap overflow stay within the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The corrupted `ibss.ssid_len` (up to 255) causes up to ~223 bytes past the 32-byte SSID buffer to be copied to userspace via `NL80211_ATTR_SSID` and via the `SIOCGIWESSID` `copy_to_user()` from a 32-byte slab object, disclosing adjacent kernel memory including `wdev->links[]` heap pointers \u2014 well beyond a \"few bytes\" bounded read.\nI:H - `cfg80211_ibss_wext_giwessid()` performs an unchecked `memcpy` of up to 255 bytes into the 32-byte `kzalloc` buffer allocated by `ioctl_standard_iw_point()`, giving an out-of-bounds slab write of up to 223 bytes with partially attacker-influenced content \u2014 a classic heap-corruption primitive.\nA:H - The out-of-bounds write smashes adjacent kmalloc-32 objects, producing KASAN BUG reports, slab corruption and kernel panics; on mesh-capable wiphys the same bug additionally triggers a `WARN_ONCE` in `check_sdata_in_driver()` via a spurious `drv_leave_ibss()` on a down interface, which panics under `panic_on_warn`."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1", "lessThan": "930e826962d9f01dcd2220176134427358d112f2", "versionType": "git"}, {"status": "affected", "version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1", "lessThan": "177d574be4b58f832354ab1ef5a297aa0c9aa2df", "versionType": "git"}, {"status": "affected", "version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1", "lessThan": "a2add961a5ed25cfd6a74f9ffb9e7ab6d6ded838", "versionType": "git"}, {"status": "affected", "version": "7b0a0e3c3a88260b6fcb017e49f198463aa62ed1", "lessThan": "f78c1375339a291cba492a70eaf12ec501d28a8e", "versionType": "git"}, {"status": "affected", "version": "7a53ad13c09150076b7ddde96c2dfc5622c90b45", "versionType": "git"}, {"status": "affected", "version": "5.19.2", "lessThan": "5.20", "versionType": "semver"}], "programFiles": ["net/wireless/nl80211.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"status": "unaffected", "version": "0", "lessThan": "6.0", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.81", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.21", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7.9", "versionType": "semver", "lessThanOrEqual": "6.7.*"}, {"status": "unaffected", "version": "6.8", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/wireless/nl80211.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/930e826962d9f01dcd2220176134427358d112f2"}, {"url": "https://git.kernel.org/stable/c/177d574be4b58f832354ab1ef5a297aa0c9aa2df"}, {"url": "https://git.kernel.org/stable/c/a2add961a5ed25cfd6a74f9ffb9e7ab6d6ded838"}, {"url": "https://git.kernel.org/stable/c/f78c1375339a291cba492a70eaf12ec501d28a8e"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: reject iftype change with mesh ID change\n\nIt's currently possible to change the mesh ID when the\ninterface isn't yet in mesh mode, at the same time as\nchanging it into mesh mode. 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This leads to an overwrite\nof data in the wdev->u union for the interface type it\ncurrently has, causing cfg80211_change_iface() to do\nwrong things when switching.\n\nWe could probably allow setting an interface to mesh\nwhile setting the mesh ID at the same time by doing a\ndifferent order of operations here, but realistically\nthere's no userspace that's going to do this, so just\ndisallow changes in iftype when setting mesh ID."}, {"lang": "es", "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: wifi: nl80211: rechazar cambio de tipo con cambio de ID de malla Actualmente es posible cambiar el ID de malla cuando la interfaz a\u00fan no est\u00e1 en modo malla, al mismo tiempo que se cambia a modo malla. Esto lleva a una sobrescritura de datos en la uni\u00f3n wdev->u para el tipo de interfaz que tiene actualmente, causando que cfg80211_change_iface() haga cosas incorrectas al cambiar. Probablemente podr\u00edamos permitir configurar una interfaz para malla mientras configuramos la ID de malla al mismo tiempo haciendo un orden diferente de operaciones aqu\u00ed, pero en realidad no hay ning\u00fan espacio de usuario que vaya a hacer esto, as\u00ed que simplemente no permita cambios en iftype al configurar la ID de malla."}], "id": "CVE-2024-27410", "lastModified": "2026-08-04T11:17:47.677", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-27410", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-06-17T17:39:36.191312Z", "version": "2.0.3"}}]}, "published": "2024-05-17T12:15:11.690", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/177d574be4b58f832354ab1ef5a297aa0c9aa2df"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/930e826962d9f01dcd2220176134427358d112f2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a2add961a5ed25cfd6a74f9ffb9e7ab6d6ded838"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f78c1375339a291cba492a70eaf12ec501d28a8e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/063715c33b4c37587aeca2c83cf08ead0c542995"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0cfbb26ee5e7b3d6483a73883f9f6157bca22ec9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/177d574be4b58f832354ab1ef5a297aa0c9aa2df"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/930e826962d9f01dcd2220176134427358d112f2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/99eb2159680af8786104dac80528acd5acd45980"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a2add961a5ed25cfd6a74f9ffb9e7ab6d6ded838"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d38d31bbbb9dc0d4d71a45431eafba03d0bc150d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f78c1375339a291cba492a70eaf12ec501d28a8e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:4352", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.8.1.rt7.349.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-07-08T00:00:00Z"}, {"advisory": "RHSA-2024:4211", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.8.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-07-02T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2025:3510", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "kernel-0:5.14.0-427.62.1.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-04-02T00:00:00Z"}], "bugzilla": {"description": "kernel: wifi: nl80211: reject iftype change with mesh ID change", "id": "2281113", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281113"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: nl80211: reject iftype change with mesh ID change\nIt's currently possible to change the mesh ID when the\ninterface isn't yet in mesh mode, at the same time as\nchanging it into mesh mode. This leads to an overwrite\nof data in the wdev->u union for the interface type it\ncurrently has, causing cfg80211_change_iface() to do\nwrong things when switching.\nWe could probably allow setting an interface to mesh\nwhile setting the mesh ID at the same time by doing a\ndifferent order of operations here, but realistically\nthere's no userspace that's going to do this, so just\ndisallow changes in iftype when setting mesh ID.", "CVE-2024-27410 is a vulnerability in the Linux kernel\u2019s Wi-Fi subsystem, affecting the nl80211 interface. The issue occurs when a mesh ID is set while simultaneously switching the interface to mesh mode, which can overwrite critical data in the wireless device's configuration. This can lead to unexpected behavior or instability. The issue has been resolved by preventing interface type changes during mesh ID updates. Users should update their kernel to a patched version to address this issue and ensure proper system functionality."], "name": "CVE-2024-27410", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-27410\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-27410\nhttps://lore.kernel.org/linux-cve-announce/2024051701-CVE-2024-27410-874a@gregkh/T"], "threat_severity": "Moderate"}

{}