216 lines
11 KiB
JSON
216 lines
11 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-2025-38456",
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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": "2025-04-16T04:51:24.019Z",
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"datePublished": "2025-07-25T15:27:35.559Z",
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"dateUpdated": "2026-08-05T12:02:02.515Z"
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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": "2026-08-05T12:02:02.515Z"
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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\nipmi:msghandler: Fix potential memory corruption in ipmi_create_user()\n\nThe \"intf\" list iterator is an invalid pointer if the correct\n\"intf->intf_num\" is not found. Calling atomic_dec(&intf->nr_users) on\nand invalid pointer will lead to memory corruption.\n\nWe don't really need to call atomic_dec() if we haven't called\natomic_add_return() so update the if (intf->in_shutdown) path as well."
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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 - The only attacker-influenced entry point is `open(\"/dev/ipmiN\")` on the IPMI character device, which feeds `iminor(inode)` directly into `ipmi_create_user()`. No remote or adjacent-network data reaches this code path.\nAC:L - Once the attacker can open a device node whose minor has no live interface — a stale/extra node, or the wide window in `ipmi_unregister_smi()` between `list_del()` and `smi_gone()` destroying the node — the out-of-bounds `atomic_dec()` fires deterministically on every call, and can be repeated arbitrarily many times to decrement the target global by a chosen amount.\nPR:L - There is no `capable()`, LSM, or any other privilege check anywhere in `ipmi_open()` → `ipmi_create_user()`; the sole gate is filesystem permissions on `/dev/ipmiN`, which deployments routinely grant to a non-root management group or account for ipmitool/freeipmi-style tooling.\nUI:N - A single `open()` syscall by the attacker triggers the corruption; no victim action, mount, or file-open by another user is required.\nS:U - The corruption is of kernel `.data` and its consequences (privilege escalation, crash) stay within the kernel's own security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The out-of-bounds write targets kernel globals adjacent to `ipmi_interfaces` — `list_head` and `struct mutex` objects — and corrupting a list pointer's low word yields a traversable wild pointer usable as a kernel memory read primitive, so full confidentiality loss is achievable.\nI:H - This is a controlled out-of-bounds write: a repeatable decrement at a fixed, known kernel-global address, letting the attacker set that word to an arbitrary lower value and thereby corrupt lock ownership or global list pointers into an arbitrary-write primitive and control-flow hijack.\nA:H - Corrupting the module's global mutex owner and list-head state leads to lock-state confusion, deadlock, or an oops/panic on the next traversal, giving a complete denial of service."
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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/char/ipmi/ipmi_msghandler.c"
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],
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"versions": [
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{
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"version": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
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"lessThan": "cbc1670297f675854e982d23c8583900ff0cc67a",
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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": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
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"lessThan": "e2d5c005dfc96fe857676d1d8ac46b29275cb89b",
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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": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
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"lessThan": "9e0d33e75c1604c3fad5586ad4dfa3b2695a3950",
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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": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
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"lessThan": "7c1a6ddb99858e7d68961f74ae27caeeeca67b6a",
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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": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
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"lessThan": "fa332f5dc6fc662ad7d3200048772c96b861cf6b",
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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/char/ipmi/ipmi_msghandler.c"
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],
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"versions": [
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{
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"version": "5.19",
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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": "5.19",
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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": "6.1.146",
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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": "6.6.99",
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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": "6.12.39",
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"lessThanOrEqual": "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": "6.15.7",
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"lessThanOrEqual": "6.15.*",
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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": "6.16",
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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": "5.19",
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"versionEndExcluding": "6.1.146"
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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": "5.19",
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"versionEndExcluding": "6.6.99"
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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": "5.19",
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"versionEndExcluding": "6.12.39"
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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": "5.19",
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"versionEndExcluding": "6.15.7"
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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": "5.19",
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"versionEndExcluding": "6.16"
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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/cbc1670297f675854e982d23c8583900ff0cc67a"
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},
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{
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"url": "https://git.kernel.org/stable/c/e2d5c005dfc96fe857676d1d8ac46b29275cb89b"
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},
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{
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"url": "https://git.kernel.org/stable/c/9e0d33e75c1604c3fad5586ad4dfa3b2695a3950"
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},
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{
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"url": "https://git.kernel.org/stable/c/7c1a6ddb99858e7d68961f74ae27caeeeca67b6a"
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},
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{
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"url": "https://git.kernel.org/stable/c/fa332f5dc6fc662ad7d3200048772c96b861cf6b"
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}
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],
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"title": "ipmi:msghandler: Fix potential memory corruption in ipmi_create_user()",
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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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"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/2025/10/msg00008.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": "2025-11-03T17:38:12.328Z"
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}
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}
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]
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}
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} |