248 lines
13 KiB
JSON
248 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-2024-27434",
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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": "2024-02-25T13:47:42.687Z",
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"datePublished": "2024-05-17T12:08:50.896Z",
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"dateUpdated": "2026-08-05T11:29:47.522Z"
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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": "2026-08-05T11:29:47.522Z"
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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\nwifi: iwlwifi: mvm: don't set the MFP flag for the GTK\n\nThe firmware doesn't need the MFP flag for the GTK, it can even make the\nfirmware crash. in case the AP is configured with: group cipher TKIP and\nMFPC. We would send the GTK with cipher = TKIP and MFP which is of course\nnot possible."
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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:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
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"baseScore": 7.1,
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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:A - The trigger is entirely controlled by the 802.11 peer (AP) via its advertised RSN group cipher and MFPC capability, consumed during association/4-way handshake by a Wi-Fi client. This requires the attacker to be within radio range on the same wireless segment, i.e. adjacent network.\nAC:L - An attacker operating an AP (including an evil twin on a network whose PSK is known or shared, such as café/office/guest Wi-Fi) fully controls the required configuration — group cipher TKIP with MFPC — and the crash follows deterministically on GTK installation, with no race or memory-layout dependency. The other precondition (PMF negotiated, so `sta->mfp` is set) is the default on modern supplicants.\nPR:N - The attacker needs no account, capability, or any privilege on the victim system; they merely configure the AP the client associates with. No local access or kernel-side authorization is involved on the target.\nUI:N - wpa_supplicant/NetworkManager auto-reconnect to a known SSID after a deauth means the association and GTK installation happen with no user action. The vulnerable code runs as part of normal automated connection setup.\nS:U - The consequences are confined to the Wi-Fi device and the kernel driver managing it — the same security authority as the vulnerable component. No VM, IOMMU, or sandbox boundary is crossed.\nC:N - The defect is an incorrect flag bit in a firmware command; there is no out-of-bounds read, uninitialized data disclosure, or leak of kernel memory to the attacker.\nI:L - The group key is installed in firmware with the wrong protection semantics — flagged as en/decrypting management frames when a non-iGTK group key must not be — so management-frame protection state for the GTK is incorrect, which any group member could attempt to abuse for forged \"protected\" broadcast management frames. This is bounded, not arbitrary, modification.\nA:H - The malformed TKIP+MFP key command asserts the firmware, producing a SW-error dump and a full NIC restart with loss of wireless connectivity, and can be re-triggered on every reconnect attempt for a persistent denial of service. Firmware re-init after such asserts can also fail outright, leaving the adapter unusable until reboot."
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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/net/wireless/intel/iwlwifi/mvm/mld-key.c"
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],
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"versions": [
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{
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"version": "5c75a208c2449c6ea24f07610cc052f6a352246c",
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"lessThan": "b4f1b0b3b91762edd19bf9d3b2e4c3a0740501f8",
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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": "5c75a208c2449c6ea24f07610cc052f6a352246c",
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"lessThan": "40405cbb20eb6541c603e7b3d54ade0a7be9d715",
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"status": "affected",
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"versionType": "git"
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{
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"version": "5c75a208c2449c6ea24f07610cc052f6a352246c",
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"status": "affected",
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{
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"version": "5c75a208c2449c6ea24f07610cc052f6a352246c",
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"lessThan": "e35f316bce9e5733c9826120c1838f4c447b2c4c",
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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/net/wireless/intel/iwlwifi/mvm/mld-key.c"
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],
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"versions": [
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{
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"version": "6.2",
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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": "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": "6.6.23",
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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": "6.7.11",
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"lessThanOrEqual": "6.7.*",
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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": "6.8.2",
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"lessThanOrEqual": "6.8.*",
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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": "6.9",
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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": "6.2",
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"versionEndExcluding": "6.6.23"
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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": "6.2",
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.2",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.2",
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"versionEndExcluding": "6.9"
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/b4f1b0b3b91762edd19bf9d3b2e4c3a0740501f8"
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},
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"url": "https://git.kernel.org/stable/c/40405cbb20eb6541c603e7b3d54ade0a7be9d715"
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{
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"url": "https://git.kernel.org/stable/c/60f6d5fc84a9fd26528a24d8a267fc6a6698b628"
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{
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"url": "https://git.kernel.org/stable/c/e35f316bce9e5733c9826120c1838f4c447b2c4c"
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}
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],
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"title": "wifi: iwlwifi: mvm: don't set the MFP flag for the GTK",
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"x_generator": {
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"engine": "bippy-1.2.0"
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},
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"adp": [
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{
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"title": "CISA ADP Vulnrichment",
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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-2024-27434",
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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": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2024-05-17T17:16:46.787202Z"
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}
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-06-04T17:46:52.503Z"
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"dateUpdated": "2024-08-02T00:34:52.476Z"
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},
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"title": "CVE Program Container",
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"references": [
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"url": "https://git.kernel.org/stable/c/b4f1b0b3b91762edd19bf9d3b2e4c3a0740501f8",
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