{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "state": "PUBLISHED", "cveId": "CVE-2021-22600", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "assignerShortName": "Google", "dateUpdated": "2025-10-21T23:15:48.681Z", "dateReserved": "2021-01-05T00:00:00.000Z", "datePublished": "2022-01-26T00:00:00.000Z" }, "containers": { "cna": { "title": "Double Free in net/packet/af_packet.c leading to priviledge escalation", "providerMetadata": { "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google", "dateUpdated": "2023-01-10T00:00:00.000Z" }, "descriptions": [ { "lang": "en", "value": "A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755" } ], "affected": [ { "vendor": "Linux Kernel", "product": "Kernel", "versions": [ { "version": "unspecified", "lessThan": "5.4.168", "status": "affected", "versionType": "custom" }, { "version": "unspecified", "lessThan": "5.10.88", "status": "affected", "versionType": "custom" }, { "version": "unspecified", "lessThan": "5.15.11", "status": "affected", "versionType": "custom" }, { "version": "unspecified", "lessThan": "5.16-rc6", "status": "affected", "versionType": "custom" } ] } ], "references": [ { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755" }, { "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update", "tags": [ "mailing-list" ], "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html" }, { "name": "DSA-5096", "tags": [ "vendor-advisory" ], "url": "https://www.debian.org/security/2022/dsa-5096" }, { "url": "https://security.netapp.com/advisory/ntap-20230110-0002/" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "HIGH", "baseScore": 6.6, "baseSeverity": "MEDIUM" } } ], "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "description": "CWE-415 Double Free", "cweId": "CWE-415" } ] } ], "x_generator": { "engine": "Vulnogram 0.0.9" }, "source": { "discovery": "EXTERNAL" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:44:13.906Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755", "tags": [ "x_transferred" ] }, { "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update", "tags": [ "mailing-list", "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html" }, { "name": "DSA-5096", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://www.debian.org/security/2022/dsa-5096" }, { "url": "https://security.netapp.com/advisory/ntap-20230110-0002/", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-22600", "role": "CISA Coordinator", "options": [ { "Exploitation": "active" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-01-29T20:47:54.395065Z" } } }, { "other": { "type": "kev", "content": { "dateAdded": "2022-04-11", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22600" } } } ], "references": [ { "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22600", "tags": [ "government-resource" ] } ], "timeline": [ { "time": "2022-04-11T00:00:00.000Z", "lang": "en", "value": "CVE-2021-22600 added to CISA KEV" } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-21T23:15:48.681Z" } } ] } }