321 lines
17 KiB
JSON
321 lines
17 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-2024-56598",
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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": "2024-12-27T14:03:06.010Z",
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"datePublished": "2024-12-27T14:51:04.988Z",
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"dateUpdated": "2026-08-05T11:45:19.362Z"
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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": "2026-08-05T11:45:19.362Z"
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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\njfs: array-index-out-of-bounds fix in dtReadFirst\n\nThe value of stbl can be sometimes out of bounds due\nto a bad filesystem. Added a check with appopriate return\nof error code in that case."
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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:N/UI:R/S:U/C:H/I:N/A:H",
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"baseScore": 7.1,
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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 malicious data is on-disk JFS directory-btree metadata consumed locally via `mount(2)` followed by `getdents(2)` on the crafted directory; no network- or peer-supplied data reaches `dtReadFirst()`. The image is delivered as removable media, a loop-mountable file, or a container/appliance disk blob.\nAC:L - The attacker sets `stbl[0]` to any negative value directly in the on-disk image, so the out-of-bounds index and its exact -32..-4096 byte offset are fully attacker-chosen and fire deterministically on the first `readdir()` of the crafted directory. There is no race, timing window, or memory-layout condition outside the attacker's influence.\nPR:N - The attacker needs no account or privilege on the target system — they only author the crafted JFS image, and the privileged mount is performed by the victim or by automounting tooling. This matches the established scoring for crafted-filesystem-image CVEs in this subsystem.\nUI:R - JFS is `FS_REQUIRES_DEV` without `FS_USERNS_MOUNT`, so the attacker cannot mount the image themselves; a victim (root, udisks/automounter, or image-processing automation) must mount it and then list the directory, though a single `ls` is enough once mounted.\nS:U - The out-of-bounds read and any resulting fault stay inside the kernel of the same host; no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - The attacker selects any 8-byte window across a 4 KB region preceding the dtree page — for the root case that is inside `struct jfs_inode_info` and neighbouring slab objects, exposing kernel pointers such as `ipimap` and `anon_inode_list` — so the read is far from \"strictly bounded to a few bytes.\" The leaked bytes become `bn`/`psize` and select which attacker-authored disk block is fetched and listed, giving an observable oracle that exfiltrates the disclosed kernel memory through `readdir()` output.\nI:N - `xd` is only dereferenced for reading in `dtReadFirst()`; the out-of-bounds access performs no kernel memory write and yields no corruption or control-flow primitive. The only writes it can steer (`add_missing_indices()`) land on blocks of the attacker's own crafted block device, not on victim-owned kernel or system state.\nA:H - This is the syzbot-reported UBSAN array-index-out-of-bounds; on `CONFIG_UBSAN_BOUNDS` + `CONFIG_UBSAN_TRAP` builds (Android GKI and hardened kernels) the check traps into a kernel panic, and on KASAN/`panic_on_warn` configurations the slab-out-of-bounds report is fatal. The garbage `bn`/`psize` additionally drives `jfs_error()` paths that panic under `errors=panic`, and the trigger is repeatable on every `readdir()` of the crafted directory."
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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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"fs/jfs/jfs_dtree.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": "25f1e673ef61d6bf9a6022e27936785896d74948",
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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": "8c97a4d5463a1c972ef576ac499ea9b05f956097",
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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": "823d573f5450ca6be80b36f54d1902ac7cd23fb9",
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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": "2eea5fda5556ef03defebf07b0a12fcd2c5210f4",
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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": "fd993b2180b4c373af8b99aa28d4dcda5c2a8f10",
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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": "22dcbf7661c6ffc3247978c254dc40b833a0d429",
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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": "ca84a2c9be482836b86d780244f0357e5a778c46",
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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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"fs/jfs/jfs_dtree.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": "5.4.287",
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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": "5.10.231",
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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": "5.15.174",
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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": "6.1.120",
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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": "6.6.66",
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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": "6.12.5",
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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": "6.13",
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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": "5.4.287"
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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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"versionEndExcluding": "5.10.231"
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"references": [
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"url": "https://git.kernel.org/stable/c/25f1e673ef61d6bf9a6022e27936785896d74948"
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},
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{
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"url": "https://git.kernel.org/stable/c/8c97a4d5463a1c972ef576ac499ea9b05f956097"
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},
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{
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"url": "https://git.kernel.org/stable/c/823d573f5450ca6be80b36f54d1902ac7cd23fb9"
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},
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{
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"url": "https://git.kernel.org/stable/c/2eea5fda5556ef03defebf07b0a12fcd2c5210f4"
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},
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{
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"url": "https://git.kernel.org/stable/c/fd993b2180b4c373af8b99aa28d4dcda5c2a8f10"
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},
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{
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"url": "https://git.kernel.org/stable/c/22dcbf7661c6ffc3247978c254dc40b833a0d429"
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},
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{
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"url": "https://git.kernel.org/stable/c/ca84a2c9be482836b86d780244f0357e5a778c46"
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}
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],
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"title": "jfs: array-index-out-of-bounds fix in dtReadFirst",
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.8,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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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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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "HIGH"
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}
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},
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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-2024-56598",
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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": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2025-10-01T20:01:28.259842Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-129",
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"description": "CWE-129 Improper Validation of Array Index"
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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": "2025-10-01T20:07:13.876Z"
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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/2025/03/msg00001.html"
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.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": "2025-11-03T20:50:33.896Z"
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}
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}
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]
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}
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} |