282 lines
15 KiB
JSON
282 lines
15 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-2023-53667",
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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": "2025-10-07T15:16:59.662Z",
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"datePublished": "2025-10-07T15:21:25.185Z",
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"dateUpdated": "2026-11-05T20:31:19.935Z"
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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": "2026-05-11T19:49:35.341Z"
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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\nnet: cdc_ncm: Deal with too low values of dwNtbOutMaxSize\n\nCurrently in cdc_ncm_check_tx_max(), if dwNtbOutMaxSize is lower than\nthe calculated \"min\" value, but greater than zero, the logic sets\ntx_max to dwNtbOutMaxSize. This is then used to allocate a new SKB in\ncdc_ncm_fill_tx_frame() where all the data is handled.\n\nFor small values of dwNtbOutMaxSize the memory allocated during\nalloc_skb(dwNtbOutMaxSize, GFP_ATOMIC) will have the same size, due to\nhow size is aligned at alloc time:\n\tsize = SKB_DATA_ALIGN(size);\n size += SKB_DATA_ALIGN(sizeof(struct skb_shared_info));\nThus we hit the same bug that we tried to squash with\ncommit 2be6d4d16a084 (\"net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero\")\n\nLow values of dwNtbOutMaxSize do not cause an issue presently because at\nalloc_skb() time more memory (512b) is allocated than required for the\nSKB headers alone (320b), leaving some space (512b - 320b = 192b)\nfor CDC data (172b).\n\nHowever, if more elements (for example 3 x u64 = [24b]) were added to\none of the SKB header structs, say 'struct skb_shared_info',\nincreasing its original size (320b [320b aligned]) to something larger\n(344b [384b aligned]), then suddenly the CDC data (172b) no longer\nfits in the spare SKB data area (512b - 384b = 128b).\n\nConsequently the SKB bounds checking semantics fails and panics:\n\nskbuff: skb_over_panic: text:ffffffff831f755b len:184 put:172 head:ffff88811f1c6c00 data:ffff88811f1c6c00 tail:0xb8 end:0x80 dev:<NULL>\n------------[ cut here ]------------\nkernel BUG at net/core/skbuff.c:113!\ninvalid opcode: 0000 [#1] PREEMPT SMP KASAN\nCPU: 0 PID: 57 Comm: kworker/0:2 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023\nWorkqueue: mld mld_ifc_work\nRIP: 0010:skb_panic net/core/skbuff.c:113 [inline]\nRIP: 0010:skb_over_panic+0x14c/0x150 net/core/skbuff.c:118\n[snip]\nCall Trace:\n <TASK>\n skb_put+0x151/0x210 net/core/skbuff.c:2047\n skb_put_zero include/linux/skbuff.h:2422 [inline]\n cdc_ncm_ndp16 drivers/net/usb/cdc_ncm.c:1131 [inline]\n cdc_ncm_fill_tx_frame+0x11ab/0x3da0 drivers/net/usb/cdc_ncm.c:1308\n cdc_ncm_tx_fixup+0xa3/0x100\n\nDeal with too low values of dwNtbOutMaxSize, clamp it in the range\n[USB_CDC_NCM_NTB_MIN_OUT_SIZE, CDC_NCM_NTB_MAX_SIZE_TX]. We ensure\nenough data space is allocated to handle CDC data by making sure\ndwNtbOutMaxSize is not smaller than USB_CDC_NCM_NTB_MIN_OUT_SIZE."
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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/usb/cdc_ncm.c"
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],
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"versions": [
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{
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"version": "289507d3364f96f4b8814726917d572f71350d87",
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"lessThan": "2334ff0b343ba6ba7a6c0586fcc83992bbbc1776",
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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": "289507d3364f96f4b8814726917d572f71350d87",
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"lessThan": "bf415bfe7573596ac213b4fd1da9e62cfc9a9413",
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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": "289507d3364f96f4b8814726917d572f71350d87",
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"lessThan": "ff484163dfb61b58f23e4dbd007de1094427669c",
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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": "289507d3364f96f4b8814726917d572f71350d87",
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"lessThan": "42b78c8cc774b47023d6d16d96d54cc7015e4a07",
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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": "289507d3364f96f4b8814726917d572f71350d87",
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"lessThan": "9be921854e983a81a0aeeae5febcd87093086e46",
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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": "289507d3364f96f4b8814726917d572f71350d87",
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"lessThan": "6147745d43ff4e0d2c542e5b93e398ef0ee4db00",
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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": "289507d3364f96f4b8814726917d572f71350d87",
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"lessThan": "72d0240b0ee4794efc683975c213e4b384fea733",
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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": "289507d3364f96f4b8814726917d572f71350d87",
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"lessThan": "7e01c7f7046efc2c7c192c3619db43292b98e997",
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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/net/usb/cdc_ncm.c"
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],
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"versions": [
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{
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"version": "3.16",
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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": "3.16",
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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": "4.14.317",
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"lessThanOrEqual": "4.14.*",
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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": "4.19.285",
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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": "5.4.245",
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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": "5.10.181",
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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": "5.15.114",
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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": "6.1.31",
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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": "6.3.5",
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"lessThanOrEqual": "6.3.*",
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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": "6.4",
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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": "3.16",
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"versionEndExcluding": "4.14.317"
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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": "3.16",
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"versionEndExcluding": "4.19.285"
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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": "3.16",
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"versionEndExcluding": "5.4.245"
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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": "3.16",
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"versionEndExcluding": "5.10.181"
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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": "3.16",
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"versionEndExcluding": "5.15.114"
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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": "3.16",
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"versionEndExcluding": "6.1.31"
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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": "3.16",
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"versionEndExcluding": "6.3.5"
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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": "3.16",
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}
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]
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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/2334ff0b343ba6ba7a6c0586fcc83992bbbc1776"
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},
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{
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"url": "https://git.kernel.org/stable/c/bf415bfe7573596ac213b4fd1da9e62cfc9a9413"
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},
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{
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"url": "https://git.kernel.org/stable/c/ff484163dfb61b58f23e4dbd007de1094427669c"
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},
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{
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"url": "https://git.kernel.org/stable/c/42b78c8cc774b47023d6d16d96d54cc7015e4a07"
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},
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{
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"url": "https://git.kernel.org/stable/c/9be921854e983a81a0aeeae5febcd87093086e46"
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},
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{
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"url": "https://git.kernel.org/stable/c/6147745d43ff4e0d2c542e5b93e398ef0ee4db00"
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},
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{
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"url": "https://git.kernel.org/stable/c/72d0240b0ee4794efc683975c213e4b384fea733"
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},
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{
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"url": "https://git.kernel.org/stable/c/7e01c7f7046efc2c7c192c3619db43292b98e997"
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}
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],
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"title": "net: cdc_ncm: Deal with too low values of dwNtbOutMaxSize",
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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-2023-53667",
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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": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-05T20:26:42.958525Z"
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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": "2026-11-05T20:31:19.935Z"
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}
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}
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]
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}
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} |