116 lines
6.1 KiB
JSON
116 lines
6.1 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-2026-23288",
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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": "2026-01-13T15:37:45.992Z",
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"datePublished": "2026-03-25T10:26:47.458Z",
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"dateUpdated": "2026-08-05T12:21:09.253Z"
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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": "2026-08-05T12:21:09.253Z"
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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\naccel/amdxdna: Fix out-of-bounds memset in command slot handling\n\nThe remaining space in a command slot may be smaller than the size of\nthe command header. Clearing the command header with memset() before\nverifying the available slot space can result in an out-of-bounds write\nand memory corruption.\n\nFix this by moving the memset() call after the size validation."
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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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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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:L - Triggered via DRM ioctl (AMDXDNA_EXEC_CMD) on the local /dev/accel device node. This is a PCI accelerator driver, not network-reachable.\nAC:L - The attacker can reliably trigger the OOB write by crafting a command chain that exhausts buffer space before the final slot. No race condition or special conditions required.\nPR:L - Requires opening the accelerator device file (/dev/accel/accel*). The ioctl has no DRM_MASTER requirement (flags=0), so any local user with device access can trigger it. No root or special capabilities needed.\nUI:N - No user interaction required. The attacker directly submits malicious commands through the DRM ioctl interface.\nS:U - The vulnerability stays within the kernel's security authority. No VM escape, IOMMU bypass, or sandbox boundary crossing is involved.\nC:H - The ~52-byte heap zero-fill corrupts adjacent kernel objects. This memory corruption can be leveraged through heap shaping to corrupt length fields or create UAF conditions, potentially enabling arbitrary memory reads.\nI:H - Out-of-bounds write of zeros into kernel heap memory corrupts adjacent objects. This can overwrite function pointers, metadata, or security-critical fields, potentially enabling code execution.\nA:H - The out-of-bounds memset corrupts kernel heap metadata and adjacent objects, reliably causing kernel crashes or oops when the corrupted data is subsequently accessed."
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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/accel/amdxdna/aie2_message.c"
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],
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"versions": [
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{
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"version": "13ae1a6000f7d8b09478e3128e87d45e89c7282f",
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"lessThan": "cca770d710d5e03bc814af585cd6975eb6d74074",
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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": "3d32eb7a5ecff92d83a5fd34c45c171c17d3d5d0",
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"lessThan": "1110a949675ebd56b3f0286e664ea543f745801c",
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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": "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/accel/amdxdna/aie2_message.c"
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],
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"versions": [
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{
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"version": "6.19.4",
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"lessThan": "6.19.7",
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"status": "affected",
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"versionType": "semver"
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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": "6.19.4",
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"versionEndExcluding": "6.19.7"
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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/cca770d710d5e03bc814af585cd6975eb6d74074"
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},
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{
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"url": "https://git.kernel.org/stable/c/1110a949675ebd56b3f0286e664ea543f745801c"
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}
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],
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"title": "accel/amdxdna: Fix out-of-bounds memset in command slot handling",
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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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}
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} |