367 lines
17 KiB
JSON
367 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-2021-47297",
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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": "2024-05-21T13:27:52.132Z",
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"datePublished": "2024-05-21T14:35:19.982Z",
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"dateUpdated": "2026-05-11T13:51:45.933Z"
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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": "2026-05-11T13:51:45.933Z"
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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: fix uninit-value in caif_seqpkt_sendmsg\n\nWhen nr_segs equal to zero in iovec_from_user, the object\nmsg->msg_iter.iov is uninit stack memory in caif_seqpkt_sendmsg\nwhich is defined in ___sys_sendmsg. So we cann't just judge\nmsg->msg_iter.iov->base directlly. We can use nr_segs to judge\nmsg in caif_seqpkt_sendmsg whether has data buffers.\n\n=====================================================\nBUG: KMSAN: uninit-value in caif_seqpkt_sendmsg+0x693/0xf60 net/caif/caif_socket.c:542\nCall Trace:\n __dump_stack lib/dump_stack.c:77 [inline]\n dump_stack+0x1c9/0x220 lib/dump_stack.c:118\n kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:118\n __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215\n caif_seqpkt_sendmsg+0x693/0xf60 net/caif/caif_socket.c:542\n sock_sendmsg_nosec net/socket.c:652 [inline]\n sock_sendmsg net/socket.c:672 [inline]\n ____sys_sendmsg+0x12b6/0x1350 net/socket.c:2343\n ___sys_sendmsg net/socket.c:2397 [inline]\n __sys_sendmmsg+0x808/0xc90 net/socket.c:2480\n __compat_sys_sendmmsg net/compat.c:656 [inline]"
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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/caif/caif_socket.c"
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],
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"versions": [
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{
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"version": "bece7b2398d073d11b2e352405a3ecd3a1e39c60",
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"lessThan": "d9d646acad2c3590e189bb5d5c86ab8bd8a2dfc3",
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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": "bece7b2398d073d11b2e352405a3ecd3a1e39c60",
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"lessThan": "5c6d8e2f7187b8e45a18c27acb7a3885f03ee3db",
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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": "bece7b2398d073d11b2e352405a3ecd3a1e39c60",
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"lessThan": "ffe31dd70b70a40cd6b21b78c1713a23e021843a",
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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": "bece7b2398d073d11b2e352405a3ecd3a1e39c60",
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"lessThan": "452c3ed7bf63721b07bc2238ed1261bb26027e85",
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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": "bece7b2398d073d11b2e352405a3ecd3a1e39c60",
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"lessThan": "9413c0abb57f70a953b1116318d6aa478013c35d",
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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": "bece7b2398d073d11b2e352405a3ecd3a1e39c60",
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"lessThan": "1582a02fecffcee306663035a295e28e1c4aaaff",
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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": "bece7b2398d073d11b2e352405a3ecd3a1e39c60",
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"lessThan": "d4c7797ab1517515f0d08b3bc1c6b48883889c54",
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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": "bece7b2398d073d11b2e352405a3ecd3a1e39c60",
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"lessThan": "991e634360f2622a683b48dfe44fe6d9cb765a09",
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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/caif/caif_socket.c"
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],
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"versions": [
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{
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"version": "2.6.35",
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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": "2.6.35",
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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": "4.4.277",
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"lessThanOrEqual": "4.4.*",
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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": "4.9.277",
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"lessThanOrEqual": "4.9.*",
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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": "4.14.241",
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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": "4.19.199",
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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": "5.4.136",
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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": "5.10.54",
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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": "5.13.6",
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"lessThanOrEqual": "5.13.*",
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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": "5.14",
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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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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.35",
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"versionEndExcluding": "4.4.277"
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"url": "https://git.kernel.org/stable/c/1582a02fecffcee306663035a295e28e1c4aaaff"
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"url": "https://git.kernel.org/stable/c/991e634360f2622a683b48dfe44fe6d9cb765a09"
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}
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],
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"title": "net: fix uninit-value in caif_seqpkt_sendmsg",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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"adp": [
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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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"type": "CWE",
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"lang": "en",
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"description": "CWE-noinfo Not enough information"
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}
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]
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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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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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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": "NONE"
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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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"timestamp": "2024-05-29T18:54:57.355756Z",
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"id": "CVE-2021-47297",
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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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"Technical Impact": "partial"
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"version": "2.0.3"
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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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"title": "CVE Program Container",
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