314 lines
16 KiB
JSON
314 lines
16 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-2024-44998",
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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": "2024-08-21T05:34:56.672Z",
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"datePublished": "2024-09-04T19:54:42.826Z",
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"dateUpdated": "2026-08-05T11:37:36.271Z"
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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": "2026-08-05T11:37:36.271Z"
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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\natm: idt77252: prevent use after free in dequeue_rx()\n\nWe can't dereference \"skb\" after calling vcc->push() because the skb\nis released."
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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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL"
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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:N - The UAF is triggered purely by an AAL5 PDU received from the remote end of an ATM virtual circuit, processed in the card's interrupt handler before any higher-layer filtering. ATM VCs are switched WAN circuits (DSL/backhaul), and via br2684/pppoatm they carry ordinary internet traffic, so the attacker set extends beyond a single shared segment.\nAC:L - The attacker fully controls both the packet size (choosing the single-skb reassembly branch) and the encapsulation header that forces br2684_push()/pppoatm_push() down their `kfree_skb()` error path, making the use-after-free deterministic on a single packet with no race to win.\nPR:N - No authentication or authorization exists anywhere on this path — the skb is freed and then re-dereferenced inside the driver's hardirq receive handler, long before any application-level credential check.\nUI:N - The vulnerable code runs automatically on packet reception; no local user must open, mount, or interact with anything for the attacker's frame to be processed.\nS:U - The freed sk_buff and the corrupted buffer-management state are both kernel resources managed by the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is a use-after-free read of a slab object the attacker can groom by keeping concurrent traffic in flight, so the reclaimed sk_buff contents are read back into driver control flow — per kernel UAF convention this constitutes a high-confidentiality read primitive.\nI:H - A use-after-free on a sprayable slab object allows the attacker to influence the value the driver consumes, which in turn drives subsequent skb allocation, DMA mapping, and free-buffer-queue bookkeeping; UAFs of this class are treated as exploitable for arbitrary write/control-flow hijacking.\nA:H - The stale read occurs in hardirq context and panics KASAN/KFENCE/panic_on_warn kernels; even on stock kernels, repeated remote packets cause the wrong free-buffer queue to be refilled, starving the correct SAR FBQ and permanently stalling the card's receive path."
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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/atm/idt77252.c"
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],
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"versions": [
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{
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"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "628ea82190a678a56d2ec38cda3addf3b3a6248d",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "09e086a5f72ea27c758b3f3b419a69000c32adc1",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "1cece837e387c039225f19028df255df87a97c0d",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "24cf390a5426aac9255205e9533cdd7b4235d518",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "379a6a326514a3e2f71b674091dfb0e0e7522b55",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "ef23c18ab88e33ce000d06a5c6aad0620f219bfd",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "91b4850e7165a4b7180ef1e227733bcb41ccdf10",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "a9a18e8f770c9b0703dab93580d0b02e199a4c79",
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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/atm/idt77252.c"
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],
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"versions": [
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{
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"version": "2.6.12",
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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": "2.6.12",
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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": "4.19.321",
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"lessThanOrEqual": "4.19.*",
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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": "5.4.283",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.225",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.166",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.107",
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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": "6.6.48",
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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": "6.10.7",
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"lessThanOrEqual": "6.10.*",
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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": "6.11",
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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": "2.6.12",
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"versionEndExcluding": "4.19.321"
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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": "2.6.12",
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"versionEndExcluding": "5.4.283"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.15.166"
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/628ea82190a678a56d2ec38cda3addf3b3a6248d"
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},
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{
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"url": "https://git.kernel.org/stable/c/09e086a5f72ea27c758b3f3b419a69000c32adc1"
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},
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{
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"url": "https://git.kernel.org/stable/c/1cece837e387c039225f19028df255df87a97c0d"
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},
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{
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"url": "https://git.kernel.org/stable/c/24cf390a5426aac9255205e9533cdd7b4235d518"
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},
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{
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"url": "https://git.kernel.org/stable/c/379a6a326514a3e2f71b674091dfb0e0e7522b55"
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},
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{
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"url": "https://git.kernel.org/stable/c/ef23c18ab88e33ce000d06a5c6aad0620f219bfd"
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},
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{
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"url": "https://git.kernel.org/stable/c/91b4850e7165a4b7180ef1e227733bcb41ccdf10"
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},
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{
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"url": "https://git.kernel.org/stable/c/a9a18e8f770c9b0703dab93580d0b02e199a4c79"
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}
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],
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"title": "atm: idt77252: prevent use after free in dequeue_rx()",
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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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"timestamp": "2024-09-04T20:19:05.283493Z",
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"id": "CVE-2024-44998",
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2024-09-04T20:19:17.632Z"
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}
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},
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T22:14:54.152Z"
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}
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}
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]
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}
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} |