250 lines
12 KiB
JSON
250 lines
12 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-2026-23405",
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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": "2026-01-13T15:37:46.012Z",
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"datePublished": "2026-04-01T08:36:35.697Z",
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"dateUpdated": "2026-05-11T22:06:16.436Z"
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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": "2026-05-11T22:06:16.436Z"
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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\napparmor: fix: limit the number of levels of policy namespaces\n\nCurrently the number of policy namespaces is not bounded relying on\nthe user namespace limit. However policy namespaces aren't strictly\ntied to user namespaces and it is possible to create them and nest\nthem arbitrarily deep which can be used to exhaust system resource.\n\nHard cap policy namespaces to the same depth as user namespaces."
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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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"security/apparmor/include/policy_ns.h",
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"security/apparmor/policy_ns.c"
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],
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"versions": [
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{
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"version": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
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"lessThan": "6b396cc2f0365e684fc1d3547d18ef79fcee225d",
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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": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
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"lessThan": "87d0cecc900e55d55fc4dbfb43ac93e269c7a5b3",
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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": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
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"lessThan": "b1226e37eb3754d389721c135db6107db94c7a72",
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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": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
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"lessThan": "3f8699b3ee0c04b4b9bc27b82cd89a40e81e1d2e",
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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": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
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"lessThan": "853ce31ca72097d23991a06876a2ccb5cb64b603",
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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": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
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"lessThan": "d42b2b6bb77ca40ee34ab74ad79305840b5f315d",
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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": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
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"lessThan": "7b6495ead2c611647f6b11441a852324e3eb8616",
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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": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
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"lessThan": "306039414932c80f8420695a24d4fe10c84ccfb2",
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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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"security/apparmor/include/policy_ns.h",
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"security/apparmor/policy_ns.c"
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],
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"versions": [
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{
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"version": "2.6.36",
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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": "2.6.36",
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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": "5.10.253",
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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": "5.15.203",
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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": "6.1.169",
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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": "6.6.130",
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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": "6.12.77",
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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": "6.18.18",
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"lessThanOrEqual": "6.18.*",
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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": "6.19.8",
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"lessThanOrEqual": "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": "7.0",
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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": "2.6.36",
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"versionEndExcluding": "5.10.253"
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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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"versionStartIncluding": "2.6.36",
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"versionEndExcluding": "5.15.203"
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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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"versionStartIncluding": "2.6.36",
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"versionEndExcluding": "6.1.169"
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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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"versionStartIncluding": "2.6.36",
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"versionEndExcluding": "6.6.130"
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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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"versionStartIncluding": "2.6.36",
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"versionEndExcluding": "6.12.77"
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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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"versionStartIncluding": "2.6.36",
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"versionEndExcluding": "6.18.18"
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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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"versionStartIncluding": "2.6.36",
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"versionEndExcluding": "6.19.8"
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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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"versionStartIncluding": "2.6.36",
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"versionEndExcluding": "7.0"
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}
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]
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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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"url": "https://git.kernel.org/stable/c/6b396cc2f0365e684fc1d3547d18ef79fcee225d"
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},
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{
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"url": "https://git.kernel.org/stable/c/87d0cecc900e55d55fc4dbfb43ac93e269c7a5b3"
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},
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{
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"url": "https://git.kernel.org/stable/c/b1226e37eb3754d389721c135db6107db94c7a72"
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},
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{
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"url": "https://git.kernel.org/stable/c/3f8699b3ee0c04b4b9bc27b82cd89a40e81e1d2e"
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},
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{
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"url": "https://git.kernel.org/stable/c/853ce31ca72097d23991a06876a2ccb5cb64b603"
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},
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{
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"url": "https://git.kernel.org/stable/c/d42b2b6bb77ca40ee34ab74ad79305840b5f315d"
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},
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{
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"url": "https://git.kernel.org/stable/c/7b6495ead2c611647f6b11441a852324e3eb8616"
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},
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{
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"url": "https://git.kernel.org/stable/c/306039414932c80f8420695a24d4fe10c84ccfb2"
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}
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],
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"title": "apparmor: fix: limit the number of levels of policy namespaces",
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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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} |