525 lines
26 KiB
JSON
525 lines
26 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-2024-49982",
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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": "2024-10-21T12:17:06.052Z",
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"datePublished": "2024-10-21T18:02:27.820Z",
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"dateUpdated": "2026-10-15T00:55:30.968Z"
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},
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"containers": {
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"cna": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T11:40:51.528Z"
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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\naoe: fix the potential use-after-free problem in more places\n\nFor fixing CVE-2023-6270, f98364e92662 (\"aoe: fix the potential\nuse-after-free problem in aoecmd_cfg_pkts\") makes tx() calling dev_put()\ninstead of doing in aoecmd_cfg_pkts(). It avoids that the tx() runs\ninto use-after-free.\n\nThen Nicolai Stange found more places in aoe have potential use-after-free\nproblem with tx(). e.g. revalidate(), aoecmd_ata_rw(), resend(), probe()\nand aoecmd_cfg_rsp(). Those functions also use aoenet_xmit() to push\npacket to tx queue. So they should also use dev_hold() to increase the\nrefcnt of skb->dev.\n\nOn the other hand, moving dev_put() to tx() causes that the refcnt of\nskb->dev be reduced to a negative value, because corresponding\ndev_hold() are not called in revalidate(), aoecmd_ata_rw(), resend(),\nprobe(), and aoecmd_cfg_rsp(). This patch fixed this issue."
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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:H/A:H",
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"baseScore": 8.8,
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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:A - The strongest path is `aoenet_rcv()` → `aoecmd_cfg_rsp()` → `aoecmd_ata_id()`, driven purely by a received AoE frame; AoE is a raw EtherType-0x88A2 Layer-2 protocol with no IP encapsulation, so the attacker must be on the same Ethernet/LAN segment (SAN VLAN, cloud L2 network, shared switch).\nAC:L - The refcount underflow is deterministic — one leaked `dev_put()` per transmitted packet with no race to win — and the attacker fully controls the trigger rate by injecting AoE config responses (and the retransmit timer keeps draining references autonomously afterwards).\nPR:N - `aoecmd_cfg_rsp()` is invoked from the packet handler on unsolicited frames with zero authentication, and it auto-allocates an aoedev and target from attacker-supplied shelf/slot/MAC, so no credentials or local account are needed.\nUI:N - The vulnerable code runs in softirq/packet-receive and timer context as soon as the frame arrives; no administrator or user action is required beyond the aoe driver being loaded.\nS:U - The corrupted `struct net_device` and the resulting memory corruption are entirely within the kernel's own security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - Premature free of a live `struct net_device` yields a use-after-free on a large, widely-referenced kernel object that can be reclaimed and re-sprayed by the attacker, giving an arbitrary kernel-memory read primitive and disclosure of adjacent slab contents.\nI:H - The same UAF permits reallocating the freed `net_device` with attacker-controlled data, corrupting embedded function pointers (`net_device_ops`, `header_ops`) for a write/control-flow-hijack primitive leading to arbitrary kernel code execution.\nA:H - Even without exploitation, the negative refcount trips `BUG_ON(netdev_refcnt_read(dev) != 1)` in `free_netdev()` and causes use-after-free dereferences of the freed device in the transmit path, producing a kernel oops/panic that is trivially reproducible by an unauthenticated LAN host."
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}
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]
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}
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],
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|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.0",
|
|
"lessThan": "V3.1.5",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.0",
|
|
"lessThan": "V3.1.5",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "RUGGEDCOM RST2428P",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "0",
|
|
"lessThan": "V3.2",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "0",
|
|
"lessThan": "V3.2",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "0",
|
|
"lessThan": "V3.2",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
|
|
},
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
} |