194 lines
7.7 KiB
JSON
194 lines
7.7 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-2026-79619",
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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": "2026-08-25T08:10:52.983Z",
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"datePublished": "2026-08-26T12:50:10.502Z",
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"dateUpdated": "2026-08-27T17:32:03.057Z"
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},
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"containers": {
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"cna": {
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"title": "OpenZFS: user-namespace capability check allows unprivileged local authorization bypass",
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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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"cweId": "CWE-863",
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"description": "CWE-863 Incorrect Authorization",
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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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"affected": [
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{
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"vendor": "OpenZFS",
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"product": "OpenZFS",
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"platforms": [
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"Linux"
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],
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"repo": "https://github.com/openzfs/zfs",
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"versions": [
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{
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"status": "affected",
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"version": "0.7.0",
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"lessThan": "2.2.11",
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"versionType": "semver"
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},
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{
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"status": "affected",
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"version": "2.3.0",
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"lessThan": "2.3.9",
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"versionType": "semver"
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},
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{
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"status": "affected",
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"version": "2.4.0",
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"lessThan": "2.4.4",
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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 Linux, several OpenZFS ioctl authorization checks accept a capability held only within a user-created, unprivileged namespace as equivalent to real host privilege, allowing an unprivileged local user to perform operations that should require root. Affected operations include pool-administrative operations (eg create, import, destroy), pool event log access (zpool events) and fault injection (zinject). Exploiting the problem requires only that the local user is permitted to open /dev/zfs (governed by local device permissions) and that the kernel permits unprivileged user namespace creation. No prior access to the target pool or its underlying devices is needed."
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}
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],
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"references": [
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{
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"url": "https://github.com/openzfs/zfs/pull/18959",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://github.com/advisories/GHSA-mhf5-q8gw-qg9v",
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"tags": [
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"vendor-advisory"
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]
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},
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{
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"url": "https://github.com/openzfs/zfs/releases/tag/zfs-2.4.4",
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"tags": [
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"product"
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]
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},
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{
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"url": "https://github.com/openzfs/zfs/releases/tag/zfs-2.3.9",
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"tags": [
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"product"
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]
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},
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{
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"url": "https://github.com/openzfs/zfs/releases/tag/zfs-2.2.11",
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"tags": [
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"product"
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]
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},
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{
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"url": "https://seclists.org/fulldisclosure/2026/Aug/40",
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"tags": [
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"mailing-list"
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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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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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"subIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subAvailabilityImpact": "NONE",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "HIGH",
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"baseScore": 7.3,
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
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}
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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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"value": "Erica Windisch",
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"type": "reporter"
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},
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{
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"lang": "en",
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"value": "Rob Norris",
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"type": "remediation developer"
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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": "2026-08-27T17:32:03.057Z"
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},
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"x_generator": {
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"engine": "cvelib 1.8.0"
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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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"timestamp": "2026-08-26T15:47:13.454769Z",
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"id": "CVE-2026-79619",
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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": "2026-08-26T15:47:19.764Z"
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}
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}
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]
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}
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} |