172 lines
8.6 KiB
JSON
172 lines
8.6 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2022-48964",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2024-08-22T01:27:53.628Z",
|
|
"datePublished": "2024-10-21T20:05:47.835Z",
|
|
"dateUpdated": "2026-08-05T08:53:10.905Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T08:53:10.905Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nravb: Fix potential use-after-free in ravb_rx_gbeth()\n\nThe skb is delivered to napi_gro_receive() which may free it, after calling this,\ndereferencing skb may trigger use-after-free."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
|
|
"baseScore": 8.8,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:A - The UAF is in ravb_rx_gbeth() on the Renesas RZ/G2L GBETH Ethernet RX NAPI path, reached only when multi-descriptor frames (DT_FEND, frames > GBETH_RX_DESC_DATA_SIZE/4080 bytes) arrive on the L2 segment; an attacker must be on the same LAN/broadcast domain to inject those jumbo frames, matching Adjacent scoring for Ethernet NIC RX UAFs (e.g. CVE-2022-48962).\nAC:L - An adjacent peer can send jumbo frames (hardware RFLR always accepts up to ~8K on gbeth) and burst same-flow segments so napi_gro_receive() returns GRO_MERGED_FREE and frees the skb before the immediate priv->rx_1st_skb->len read; no attacker-uncontrollable race or rare config is required.\nPR:N - Frame delivery runs in softirq/NAPI (ravb_interrupt → ravb_poll → ravb_rx_gbeth) with no host authentication or capability check; any unauthenticated peer that can put Ethernet frames on the wire triggers the path.\nUI:N - RX interrupt and NAPI processing run automatically once the interface is up; no victim action such as opening a file or confirming a prompt is required.\nS:U - The use-after-free corrupts host-kernel sk_buff heap state within the same OS security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - This is a heap use-after-free of an sk_buff after napi_gro_receive may free it; reclaiming the slab object enables disclosure of reused kernel memory via the dangling skb->len read, scored High per UAF guidance.\nI:H - sk_buff use-after-free in a general-purpose slab is a classic heap-grooming primitive that can yield attacker-controlled object reuse and control-flow hijacking, so integrity impact is High per kernel UAF scoring guidance.\nA:H - Dereferencing a freed sk_buff can oops/panic the kernel, and an adjacent attacker can repeatedly inject jumbo frames to crash the host at will."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/net/ethernet/renesas/ravb_main.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "1c59eb678cbd8d322d06d3a5514d36e8e1a4e84c",
|
|
"lessThan": "e63c681494dcc0527c625a0a4f59bf10259f5ee0",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1c59eb678cbd8d322d06d3a5514d36e8e1a4e84c",
|
|
"lessThan": "5a5a3e564de6a8db987410c5c2f4748d50ea82b8",
|
|
"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/net/ethernet/renesas/ravb_main.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "5.16",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "5.16",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.0.13",
|
|
"lessThanOrEqual": "6.0.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1",
|
|
"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": "5.16",
|
|
"versionEndExcluding": "6.0.13"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.16",
|
|
"versionEndExcluding": "6.1"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/e63c681494dcc0527c625a0a4f59bf10259f5ee0"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/5a5a3e564de6a8db987410c5c2f4748d50ea82b8"
|
|
}
|
|
],
|
|
"title": "ravb: Fix potential use-after-free in ravb_rx_gbeth()",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2022-48964",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2024-10-22T13:19:59.511376Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2024-10-22T13:28:38.732Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |