342 lines
17 KiB
JSON
342 lines
17 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2025-22004",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2024-12-29T08:45:45.802Z",
|
|
"datePublished": "2025-04-03T07:19:06.022Z",
|
|
"dateUpdated": "2026-08-05T11:55:57.189Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T11:55:57.189Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: atm: fix use after free in lec_send()\n\nThe ->send() operation frees skb so save the length before calling\n->send() to avoid a use after free."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
|
|
"baseScore": 8.6,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:N - The vulnerable code is the TX path of the `lec%d` netdevice, and an unauthenticated remote host reaches it with no local access — a packet sent to the LANE-attached host elicits a reply transmitted through `lec_start_xmit()` → `lec_send()`, and in the proxy/bridge mode LANE explicitly supports, a frame received on an Ethernet segment is forwarded straight out the ELAN into the same path. No adjacency is required since a LANE client is an ordinary routed IP host.\nAC:L - The read-after-free is unconditional on every successful send, with no race and no memory-layout precondition: `adummy_send()` and `atmtcp_v_send()` free the skb synchronously and return 0, after which `lec_send()` always dereferences `skb->len`. Even against hardware ATM drivers that free asynchronously via `vcc->pop()`, the attacker simply drives traffic to hit it repeatedly.\nPR:N - Triggering requires no credentials on the target — a remote peer merely causes a frame to be transmitted on the emulated LAN. The `capable(CAP_NET_ADMIN)` checks on `ATMLEC_CTRL`/`ATMLEC_DATA` gate only the administrative LANE setup, not the vulnerable transmit path, which is also open to any unprivileged local process via a plain `sendto()`.\nUI:N - No victim action is needed; the freed-object read happens automatically in the netdevice transmit path and in the `lec_arp_check_expire()` workqueue drain.\nS:U - The stale read and the corrupted statistics counter are entirely within the kernel's own security authority, with no crossing into a hypervisor, IOMMU, or sandbox boundary.\nC:L - The stale `skb->len` from the freed skbuff is accumulated into `dev->stats.tx_bytes`, which any user can read via `/sys/class/net/lec0/statistics/tx_bytes` or `/proc/net/dev`, yielding a repeatable kernel-heap disclosure — but it is strictly bounded to 4 bytes from one fixed offset of a `SLAB_NO_MERGE` cache, so it is a limited leak rather than an arbitrary read.\nI:L - Nothing is written into the freed object, so there is no memory corruption or write primitive; the only integrity effect is that attacker-influenced garbage is folded into the interface's `tx_bytes` counter, falsifying kernel-reported accounting data.\nA:H - This is a genuine use-after-free, and on KASAN- or KFENCE-instrumented kernels the access raises a slab-use-after-free report that panics the machine outright under `panic_on_warn`, which is common in production and CI fleets."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"net/atm/lec.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "50e288097c2c6e5f374ae079394436fc29d1e88e",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "8cd90c7db08f32829bfa1b5b2b11fbc542afbab7",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "82d9084a97892de1ee4881eb5c17911fcd9be6f6",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "51e8be9578a2e74f9983d8fd8de8cafed191f30c",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "9566f6ee13b17a15d0a47667ad1b1893c539f730",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "326223182e4703cde99fdbd36d07d0b3de9980fb",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "f3271f7548385e0096739965961c7cbf7e6b4762",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "f3009d0d6ab78053117f8857b921a8237f4d17b3",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"net/atm/lec.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "2.6.12",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "2.6.12",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.4.292",
|
|
"lessThanOrEqual": "5.4.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.236",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.180",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.132",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.85",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.21",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.13.9",
|
|
"lessThanOrEqual": "6.13.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.14",
|
|
"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": "2.6.12",
|
|
"versionEndExcluding": "5.4.292"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "5.10.236"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "5.15.180"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.1.132"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.6.85"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.12.21"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.13.9"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.14"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/50e288097c2c6e5f374ae079394436fc29d1e88e"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/8cd90c7db08f32829bfa1b5b2b11fbc542afbab7"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/82d9084a97892de1ee4881eb5c17911fcd9be6f6"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/51e8be9578a2e74f9983d8fd8de8cafed191f30c"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/9566f6ee13b17a15d0a47667ad1b1893c539f730"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/326223182e4703cde99fdbd36d07d0b3de9980fb"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f3271f7548385e0096739965961c7cbf7e6b4762"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f3009d0d6ab78053117f8857b921a8237f4d17b3"
|
|
}
|
|
],
|
|
"title": "net: atm: fix use after free in lec_send()",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"scope": "UNCHANGED",
|
|
"version": "3.1",
|
|
"baseScore": 7.8,
|
|
"attackVector": "LOCAL",
|
|
"baseSeverity": "HIGH",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
|
|
"integrityImpact": "HIGH",
|
|
"userInteraction": "NONE",
|
|
"attackComplexity": "LOW",
|
|
"availabilityImpact": "HIGH",
|
|
"privilegesRequired": "LOW",
|
|
"confidentialityImpact": "HIGH"
|
|
}
|
|
},
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2025-22004",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2025-04-03T15:25:36.800582Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"type": "CWE",
|
|
"cweId": "CWE-416",
|
|
"description": "CWE-416 Use After Free"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2025-04-03T15:27:39.003Z"
|
|
}
|
|
},
|
|
{
|
|
"title": "CVE Program Container",
|
|
"references": [
|
|
{
|
|
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
|
|
},
|
|
{
|
|
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
|
|
"shortName": "CVE",
|
|
"dateUpdated": "2025-11-03T19:40:44.831Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |