CVE-2026-47328 (GCVE-0-2026-47328)
Vulnerability from cvelistv5
Published
2026-05-28 18:27
Modified
2026-05-28 19:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-590 - Free of memory not on the heap
Summary
Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Canonical | Ubuntu Linux |
Version: 6.8.0 Version: 6.17.0 Version: 7.0.0 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-47328",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-28T19:20:06.494860Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-28T19:25:13.160Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://launchpad.net/ubuntu/+source/",
"defaultStatus": "unaffected",
"modules": [
"AppArmor"
],
"packageName": "linux",
"product": "Ubuntu Linux",
"repo": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/",
"vendor": "Canonical",
"versions": [
{
"lessThan": "6.8.0-124.124",
"status": "affected",
"version": "6.8.0",
"versionType": "dpkg"
},
{
"lessThan": "6.17.0-35.35",
"status": "affected",
"version": "6.17.0",
"versionType": "dpkg"
},
{
"lessThan": "7.0.0-22.22",
"status": "affected",
"version": "7.0.0",
"versionType": "dpkg"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Tristan Madani (@TristanInSec), Talence Security"
}
],
"descriptions": [
{
"lang": "en",
"value": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-590",
"description": "CWE-590 Free of memory not on the heap",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-28T18:27:33.181Z",
"orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
"shortName": "canonical"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=7f3c4902c39432ce7ea0d384cb70eba282247fac"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Invalid pointer deallocation in Ubuntu Linux AppArmor notification handling"
}
},
"cveMetadata": {
"assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
"assignerShortName": "canonical",
"cveId": "CVE-2026-47328",
"datePublished": "2026-05-28T18:27:33.181Z",
"dateReserved": "2026-05-19T10:37:36.433Z",
"dateUpdated": "2026-05-28T19:25:13.160Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-47328\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-28T19:20:06.494860Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-28T19:25:08.685Z\"}}], \"cna\": {\"title\": \"Invalid pointer deallocation in Ubuntu Linux AppArmor notification handling\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Tristan Madani (@TristanInSec), Talence Security\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.1, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/\", \"vendor\": \"Canonical\", \"modules\": [\"AppArmor\"], \"product\": \"Ubuntu Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.8.0\", \"lessThan\": \"6.8.0-124.124\", \"versionType\": \"dpkg\"}, {\"status\": \"affected\", \"version\": \"6.17.0\", \"lessThan\": \"6.17.0-35.35\", \"versionType\": \"dpkg\"}, {\"status\": \"affected\", \"version\": \"7.0.0\", \"lessThan\": \"7.0.0-22.22\", \"versionType\": \"dpkg\"}], \"packageName\": \"linux\", \"collectionURL\": \"https://launchpad.net/ubuntu/+source/\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=7f3c4902c39432ce7ea0d384cb70eba282247fac\", \"tags\": [\"patch\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-590\", \"description\": \"CWE-590 Free of memory not on the heap\"}]}], \"providerMetadata\": {\"orgId\": \"cc1ad9ee-3454-478d-9317-d3e869d708bc\", \"shortName\": \"canonical\", \"dateUpdated\": \"2026-05-28T18:27:33.181Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-47328\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-28T19:25:13.160Z\", \"dateReserved\": \"2026-05-19T10:37:36.433Z\", \"assignerOrgId\": \"cc1ad9ee-3454-478d-9317-d3e869d708bc\", \"datePublished\": \"2026-05-28T18:27:33.181Z\", \"assignerShortName\": \"canonical\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…