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vuln-cve/data/2021/3xxx/CVE-2021-3864.json
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{
"containers": {
"cna": {
"affected": [
{
"product": "kernel",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Not Known"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the way the dumpable flag setting was handled when certain SUID binaries executed its descendants. The prerequisite is a SUID binary that sets real UID equal to effective UID, and real GID equal to effective GID. The descendant will then have a dumpable value set to 1. As a result, if the descendant process crashes and core_pattern is set to a relative value, its core dump is stored in the current directory with uid:gid permissions. An unprivileged local user with eligible root SUID binary could use this flaw to place core dumps into root-owned directories, potentially resulting in escalation of privileges."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284 - Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-08-26T15:25:39.000Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.openwall.com/lists/oss-security/2021/10/20/2"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2015046"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://access.redhat.com/security/cve/CVE-2021-3864"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lore.kernel.org/all/20211221021744.864115-1-longman%40redhat.com/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lore.kernel.org/lkml/20211228170910.623156-1-wander%40redhat.com/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lore.kernel.org/all/20211226150310.GA992%401wt.eu/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://security-tracker.debian.org/tracker/CVE-2021-3864"
}
]
},
"adp": [
{
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2024-08-03T17:09:09.586Z"
},
"title": "CVE Program Container",
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.openwall.com/lists/oss-security/2021/10/20/2"
},
{
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],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2015046"
},
{
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],
"url": "https://access.redhat.com/security/cve/CVE-2021-3864"
},
{
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],
"url": "https://lore.kernel.org/all/20211221021744.864115-1-longman%40redhat.com/"
},
{
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],
"url": "https://lore.kernel.org/lkml/20211228170910.623156-1-wander%40redhat.com/"
},
{
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"url": "https://lore.kernel.org/all/20211226150310.GA992%401wt.eu/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://security-tracker.debian.org/tracker/CVE-2021-3864"
}
]
}
]
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2021-3864",
"datePublished": "2022-08-26T15:25:39.000Z",
"dateReserved": "2021-10-06T00:00:00.000Z",
"dateUpdated": "2024-08-03T17:09:09.586Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}