298 lines
15 KiB
JSON
298 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-2023-53705",
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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": "2025-10-22T13:21:37.346Z",
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"datePublished": "2025-10-22T13:23:42.641Z",
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"dateUpdated": "2026-10-15T21:41:33.892Z"
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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": "2026-08-05T09:15:37.219Z"
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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\nipv6: Fix out-of-bounds access in ipv6_find_tlv()\n\noptlen is fetched without checking whether there is more than one byte to parse.\nIt can lead to out-of-bounds access.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with SVACE."
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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:L/I:N/A:H",
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"baseScore": 8.2,
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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:N - `ipv6_find_tlv()` parses IPv6 extension-header TLV options directly from sk_buff packet data (CALIPSO/MIP6/fragmentation paths), so the malformed option is delivered via a crafted network packet.\nAC:L - The attacker fully controls the extension-header option bytes and can deterministically craft an option layout that leaves a single trailing byte, triggering the out-of-bounds read reliably.\nPR:N - The vulnerable code processes untrusted IPv6 packets in network paths (labeling, MIP6, tunnel/segmentation) that require no authentication; a locally-triggered variant needs only CAP_NET_RAW obtainable via user namespaces, so the higher-severity choice is no privileges.\nUI:N - Parsing of a received/crafted packet's extension headers happens automatically in the kernel with no victim interaction required.\nS:U - The out-of-bounds access stays within the kernel's own memory and does not cross a security/privilege boundary such as a VM or IOMMU domain.\nC:L - A single out-of-bounds byte of adjacent kernel memory is read; it is strictly bounded to one byte and is only used internally in a comparison that always fails, so it is not disclosed back to the attacker.\nI:N - The defect is a read only (`optlen = nh[offset+1]`); no out-of-bounds write or data modification occurs.\nA:H - The out-of-bounds read can fault when the packet buffer abuts an unmapped page (or trip KASAN/panic_on_warn), producing a kernel oops and 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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"net/ipv6/exthdrs_core.c"
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],
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"versions": [
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{
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"version": "c61a404325093250b676f40ad8f4dd00f3bcab5f",
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"lessThan": "59e656d0d4a84ea0ee9a39c6f69160a3effccc94",
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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": "c61a404325093250b676f40ad8f4dd00f3bcab5f",
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"lessThan": "04bf69e3de435d793a203aacc4b774f8f9f2baeb",
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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": "c61a404325093250b676f40ad8f4dd00f3bcab5f",
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"lessThan": "011f47c8b8389154f996f5f69da8efc3a3beefef",
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"status": "affected",
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"versionType": "git"
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},
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{
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"lessThan": "e5f82688ae10f5f386952e65e941bb8868ee54dc",
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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": "c61a404325093250b676f40ad8f4dd00f3bcab5f",
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"lessThan": "9b92e2d0eb696d7586ba832c8854653b59887da0",
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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": "c61a404325093250b676f40ad8f4dd00f3bcab5f",
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"lessThan": "91dd8aab9c9f193210681b86b6b92840ffe74f0c",
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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": "c61a404325093250b676f40ad8f4dd00f3bcab5f",
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"lessThan": "ae68c0f7edbc9a294094ce03a0aaf45aa489ce40",
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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": "c61a404325093250b676f40ad8f4dd00f3bcab5f",
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"lessThan": "878ecb0897f4737a4c9401f3523fd49589025671",
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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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"net/ipv6/exthdrs_core.c"
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],
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"versions": [
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{
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"version": "2.6.19",
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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": "2.6.19",
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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": "4.14.316",
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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": "4.19.284",
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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": "5.4.244",
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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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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.19",
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"versionEndExcluding": "4.14.316"
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/59e656d0d4a84ea0ee9a39c6f69160a3effccc94"
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},
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{
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"url": "https://git.kernel.org/stable/c/04bf69e3de435d793a203aacc4b774f8f9f2baeb"
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},
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{
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"url": "https://git.kernel.org/stable/c/011f47c8b8389154f996f5f69da8efc3a3beefef"
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},
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{
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"url": "https://git.kernel.org/stable/c/e5f82688ae10f5f386952e65e941bb8868ee54dc"
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},
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{
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"url": "https://git.kernel.org/stable/c/9b92e2d0eb696d7586ba832c8854653b59887da0"
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},
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{
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"url": "https://git.kernel.org/stable/c/91dd8aab9c9f193210681b86b6b92840ffe74f0c"
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"url": "https://git.kernel.org/stable/c/ae68c0f7edbc9a294094ce03a0aaf45aa489ce40"
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},
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{
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"url": "https://git.kernel.org/stable/c/878ecb0897f4737a4c9401f3523fd49589025671"
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}
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],
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"title": "ipv6: Fix out-of-bounds access in ipv6_find_tlv()",
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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-2023-53705",
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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": "yes"
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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": "2026-10-15T21:36:38.329449Z"
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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": "2026-10-15T21:41:33.892Z"
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}
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}
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]
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}
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} |