242 lines
9.3 KiB
JSON
242 lines
9.3 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.1",
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"cveMetadata": {
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"cveId": "CVE-2023-2640",
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"assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
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"state": "PUBLISHED",
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"assignerShortName": "canonical",
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"dateReserved": "2023-05-10T21:23:35.226Z",
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"datePublished": "2023-07-26T01:59:23.543Z",
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"dateUpdated": "2024-10-23T14:59:17.779Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"vendor": "Canonical",
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"product": "Ubuntu Kernel",
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"platforms": [
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"Linux"
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],
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"packageName": "Linux",
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"versions": [
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{
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"status": "unaffected",
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"version": "0",
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"lessThan": "6.2.0-26.26",
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"versionType": "semver"
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},
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{
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"status": "unaffected",
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"version": "0",
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"lessThan": "6.0.0-1020.20",
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"versionType": "semver"
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},
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{
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"status": "unaffected",
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"version": "0",
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"lessThan": "5.4.0-155.172",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "On Ubuntu kernels carrying both c914c0e27eb0 and \"UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs\", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks."
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}
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],
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"workarounds": [
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{
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"lang": "en",
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"value": "If not needed, disable the ability for unprivileged users\nto create namespaces. To do this temporarily, do:\n sudo sysctl -w kernel.unprivileged_userns_clone=0\nTo disable across reboots, do:\n echo kernel.unprivileged_userns_clone=0 | \\\n sudo tee /etc/sysctl.d/99-disable-unpriv-userns.conf"
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}
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],
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"datePublic": "2023-06-06T00:00:00.000Z",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-863",
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"description": "CWE-863",
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"lang": "en",
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"type": "CWE"
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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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"tags": [
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"vendor-advisory"
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],
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"url": "https://ubuntu.com/security/notices/USN-6250-1"
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},
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{
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"tags": [
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"issue-tracking"
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],
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"url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640"
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},
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{
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"tags": [
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"technical-description"
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],
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"url": "https://wiz.io/blog/ubuntu-overlayfs-vulnerability"
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},
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{
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"tags": [
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"mailing-list"
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],
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"url": "https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html"
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Stonejiajia"
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},
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{
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"lang": "en",
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"type": "finder",
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"value": "Shir Tamari"
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},
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{
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"lang": "en",
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"type": "finder",
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"value": "Sagi Tzadik"
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "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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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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}
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}
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],
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"providerMetadata": {
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"orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
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"shortName": "canonical",
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"dateUpdated": "2023-07-26T01:59:23.543Z"
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}
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},
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"adp": [
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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": "2024-08-02T06:26:09.894Z"
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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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"tags": [
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"vendor-advisory",
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"x_transferred"
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],
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"url": "https://ubuntu.com/security/notices/USN-6250-1"
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},
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{
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"tags": [
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"issue-tracking",
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"x_transferred"
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],
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"url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640"
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},
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{
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"tags": [
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"technical-description",
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"x_transferred"
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],
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"url": "https://wiz.io/blog/ubuntu-overlayfs-vulnerability"
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},
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{
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"tags": [
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"mailing-list",
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"x_transferred"
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],
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"url": "https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html"
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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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"vendor": "canonical",
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"product": "ubantu_kernel",
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"cpes": [
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"cpe:2.3:o:canonical:ubantu_kernel:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unknown",
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"versions": [
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{
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"version": "0",
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"status": "affected",
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"lessThan": "6.2.0-26.26",
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"versionType": "semver"
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},
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{
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"version": "0",
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"status": "affected",
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"lessThan": "6.0.0-1020.20",
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"versionType": "semver"
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},
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{
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"version": "0",
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"status": "affected",
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"lessThan": "5.4.0-155.172",
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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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"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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"timestamp": "2024-10-23T14:57:20.015297Z",
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"id": "CVE-2023-2640",
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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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"role": "CISA Coordinator",
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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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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-10-23T14:59:17.779Z"
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}
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}
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]
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}
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} |