193 lines
9.6 KiB
JSON
193 lines
9.6 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-2025-37873",
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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": "2025-04-16T04:51:23.959Z",
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"datePublished": "2025-05-09T06:44:01.394Z",
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"dateUpdated": "2026-10-15T21:52:01.949Z"
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},
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T11:57:58.207Z"
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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\neth: bnxt: fix missing ring index trim on error path\n\nCommit under Fixes converted tx_prod to be free running but missed\nmasking it on the Tx error path. This crashes on error conditions,\nfor example when DMA mapping fails."
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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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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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:L - The defect is in `bnxt_start_xmit()`, the driver's local transmit path, reached by a local process sending packets through the bnxt interface; it does not parse remote peer data, so a remote attacker cannot directly drive the error path.\nAC:L - The error conditions are resource-exhaustion states the attacker can themselves induce (swiotlb/IOMMU exhaustion for `dma_map_single()`, memory pressure for `skb_pad()`/`skb_cow_head()`), and `tx_prod` exceeds `tx_ring_mask` ~99.2% of the time and is steerable by simply sending packets.\nPR:L - Any unprivileged local user can transmit packets out the bnxt NIC via ordinary sockets and generate the memory/DMA pressure needed; no capability, netlink permission, or admin gate exists on this path.\nUI:N - The OOB write occurs entirely within the attacker's own `sendmsg()`/xmit path with no victim action required.\nS:U - The corruption stays within kernel memory managed by the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The unmasked index yields an out-of-bounds write up to ~2.6 MB past a 20 KB vzalloc'd ring into neighbouring vmalloc objects (kernel stacks, other rings, module data); zeroing a pointer or length field in an adjacent structure is memory corruption that can be leveraged for information disclosure.\nI:H - This is a genuine out-of-bounds write with an attacker-steerable offset over a multi-megabyte window of vmalloc space, corrupting unrelated kernel structures.\nA:H - The commit states outright that the unmasked index \"crashes on error conditions\"; the write typically lands on a vmalloc guard page or unmapped region, producing a kernel oops/panic."
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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/ethernet/broadcom/bnxt/bnxt.c"
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],
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"versions": [
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{
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"version": "6d1add95536bafe585c500ad8114af7ed4225a0f",
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"lessThan": "21e70f694bc0dcb40174b0940cc52a7769fc19e0",
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"status": "affected",
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"versionType": "git"
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{
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"lessThan": "3742c55de00266fa7c8fd2c5d61a453d223a9cd1",
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"status": "affected",
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"versionType": "git"
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},
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{
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"lessThan": "12f2d033fae957d84c2c0ce604d2a077e61fa2c0",
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"status": "affected",
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},
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{
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"product": "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/ethernet/broadcom/bnxt/bnxt.c"
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],
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"versions": [
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{
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"version": "6.8",
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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": "6.8",
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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": "6.12.25",
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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": "6.14.4",
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"lessThanOrEqual": "6.14.*",
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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": "6.15",
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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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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "6.12.25"
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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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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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/21e70f694bc0dcb40174b0940cc52a7769fc19e0"
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},
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{
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"url": "https://git.kernel.org/stable/c/3742c55de00266fa7c8fd2c5d61a453d223a9cd1"
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},
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{
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"url": "https://git.kernel.org/stable/c/12f2d033fae957d84c2c0ce604d2a077e61fa2c0"
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}
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],
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"title": "eth: bnxt: fix missing ring index trim on error path",
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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-2025-37873",
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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": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-15T21:45:36.602410Z"
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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": "2026-10-15T21:52:01.949Z"
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}
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}
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} |