{"id":"CVE-2021-3322","state":"PUBLISHED","title":"Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr","description":"Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3","publishedAt":"2021-10-12T21:50:14.638Z","updatedAt":"2024-09-16T18:45:16.535Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"zephyr"},"assigner":"zephyr","products":["zephyrproject-rtos zephyr"],"affected":[{"vendor":"zephyrproject-rtos","product":"zephyr","versions":[{"version":">=2.4.0","status":"affected","lessThan":"unspecified","versionType":"custom"}]}],"references":["http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T19:48:55.807Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/3xxx/CVE-2021-3322.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-3322","state":"PUBLISHED","datePublished":"2021-10-12T21:50:14.638Z","dateUpdated":"2024-09-16T18:45:16.535Z","assignerShortName":"zephyr","assignerOrgId":"e2e69745-5e70-4e92-8431-deb5529a81ad","dateReserved":"2021-01-27T00:00:00.000Z"},"containers":{"cna":{"title":"Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr","descriptions":[{"lang":"en","value":"Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3"}],"affected":[{"vendor":"zephyrproject-rtos","product":"zephyr","versions":[{"version":">=2.4.0","status":"affected","lessThan":"unspecified","versionType":"custom"}]}],"references":[{"url":"http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","description":"NULL Pointer Dereference (CWE-476)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"zephyr","dateUpdated":"2021-10-12T21:50:14.000Z","orgId":"e2e69745-5e70-4e92-8431-deb5529a81ad"},"datePublic":"2021-04-21T00:00:00.000Z","source":{"defect":["https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3"]},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"vulnerabilities@zephyrproject.org","DATE_PUBLIC":"2021-04-21T00:00:00.000Z","ID":"CVE-2021-3322","STATE":"PUBLIC","TITLE":"Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"zephyr","version":{"version_data":[{"version_affected":">=","version_value":">=2.4.0"}]}}]},"vendor_name":"zephyrproject-rtos"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3"}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","environmentalScore":6.5,"integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","temporalScore":6.5,"userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"NULL Pointer Dereference (CWE-476)"}]}]},"references":{"reference_data":[{"name":"http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3","refsource":"MISC","url":"http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3"}]},"source":{"defect":["https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3"]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T16:53:17.355Z"}}]}}}