268 lines
13 KiB
JSON
268 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-2026-31779",
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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": "2026-03-09T15:48:24.140Z",
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"datePublished": "2026-05-01T14:15:06.506Z",
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"dateUpdated": "2026-10-19T19:06:08.628Z"
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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": "2026-08-05T12:25:07.828Z"
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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: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()\n\nThe memcpy function assumes the dynamic array notif->matches is at least\nas large as the number of bytes to copy. Otherwise, results->matches may\ncontain unwanted data. To guarantee safety, extend the validation in one\nof the checks to ensure sufficient packet length.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
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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:H/I:N/A:H",
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"baseScore": 8.1,
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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 vulnerable path is in the WiFi WoWLAN/net-detect resume flow, where adjacent wireless activity can cause firmware scan-match notifications. It is not Internet-routable and requires WiFi radio proximity.\nAC:L - Once WoWLAN net-detect is active, causing matching scan results is straightforward for an adjacent attacker with a spoofed AP/beacon. There is no race or timing requirement in the kernel handler itself.\nPR:N - An adjacent wireless attacker does not need local credentials on the target to transmit frames that cause net-detect wake processing. Any local privilege needed to configure WoWLAN is a deployment prerequisite, not attacker privilege in the highest reasonable scenario.\nUI:N - WoWLAN/net-detect processing occurs autonomously while the system is suspended and during resume. The attacker does not need a victim to open a file or perform an application-level action.\nS:U - The bug affects the Linux kernel driver handling its own device/firmware notification data. It does not cross into another security authority such as a VM host boundary.\nC:H - The flaw is an out-of-bounds read from the firmware notification buffer into saved net-detect results and is not limited to only a few bytes. Under the required high-severity rule, this supports high confidentiality impact.\nI:N - The vulnerable operation is a read and bounded copy into an appropriately sized destination buffer. I found no out-of-bounds write or direct primitive for modifying kernel data.\nA:H - The copied unintended bytes are later interpreted as match/channel metadata and can drive invalid kernel accesses while reporting net-detect results. A malformed notification can therefore plausibly cause an oops or kernel crash."
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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/d3.c"
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],
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"versions": [
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{
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"version": "5ac54afd4d97ad8d94fe250c83b1924eb6d2268c",
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"lessThan": "f6abac936a0dfd31d6c3e49205ec0ee75a8f887f",
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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": "5ac54afd4d97ad8d94fe250c83b1924eb6d2268c",
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"lessThan": "ffbed27ba15ef80d1c622eeedbfef03e501ae134",
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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": "5ac54afd4d97ad8d94fe250c83b1924eb6d2268c",
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"lessThan": "e67d8c626ace80b0fa2b48c8ec0a46b508c93442",
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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": "5ac54afd4d97ad8d94fe250c83b1924eb6d2268c",
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"lessThan": "dd90880eb5ec5442b37eb2b95688f4a63f4883e3",
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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": "5ac54afd4d97ad8d94fe250c83b1924eb6d2268c",
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"lessThan": "ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2",
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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": "5ac54afd4d97ad8d94fe250c83b1924eb6d2268c",
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"lessThan": "744fabc338e87b95c4d1ff7c95bc8c0f834c6d99",
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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/d3.c"
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],
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"versions": [
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{
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"version": "6.1",
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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": "6.1",
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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": "6.1.168",
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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": "6.6.134",
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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": "6.12.81",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.22",
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"lessThanOrEqual": "6.18.*",
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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": "6.19.12",
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"lessThanOrEqual": "6.19.*",
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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": "7.0",
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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": "6.1",
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"versionEndExcluding": "6.1.168"
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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": "6.1",
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"versionEndExcluding": "6.6.134"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.1",
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"versionEndExcluding": "6.12.81"
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.1",
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"versionEndExcluding": "6.18.22"
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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": "6.1",
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"versionEndExcluding": "6.19.12"
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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": "6.1",
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"versionEndExcluding": "7.0"
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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/f6abac936a0dfd31d6c3e49205ec0ee75a8f887f"
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},
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{
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"url": "https://git.kernel.org/stable/c/ffbed27ba15ef80d1c622eeedbfef03e501ae134"
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},
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{
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"url": "https://git.kernel.org/stable/c/e67d8c626ace80b0fa2b48c8ec0a46b508c93442"
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},
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{
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"url": "https://git.kernel.org/stable/c/dd90880eb5ec5442b37eb2b95688f4a63f4883e3"
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},
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{
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"url": "https://git.kernel.org/stable/c/ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2"
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},
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{
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"url": "https://git.kernel.org/stable/c/744fabc338e87b95c4d1ff7c95bc8c0f834c6d99"
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}
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],
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"title": "wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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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-2026-31779",
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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": "2026-10-16T15:13:14.151530Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-125",
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"description": "CWE-125 Out-of-bounds Read"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T19:06:08.628Z"
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}
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}
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]
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}
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} |