{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47620","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-06-20T11:03:43.235Z","datePublished":"2024-06-20T11:08:09.320Z","dateUpdated":"2025-12-18T11:38:14.146Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-12-18T11:38:14.146Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: refactor malicious adv data check\n\nCheck for out-of-bound read was being performed at the end of while\nnum_reports loop, and would fill journal with false positives. Added\ncheck to beginning of loop processing so that it doesn't get checked\nafter ptr has been advanced."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_event.c"],"versions":[{"version":"048acfa4daf167b007b6bd8bef474e90c2282a5f","lessThan":"305e92f525450f3e1b5f5c9dc7eadb152d66a082","status":"affected","versionType":"git"},{"version":"7d4238edd3bf8b8c75571cc3b382bc10438ac588","lessThan":"7889b38a7f21ed19314f83194622b195d328465c","status":"affected","versionType":"git"},{"version":"185c77cbb53bc7481acc5a0b4e6119bbe393d561","lessThan":"5a539c08d743d9910631448da78af5e961664c0e","status":"affected","versionType":"git"},{"version":"4a1491432394b22e585a185ffca49086e4046aae","lessThan":"8819f93cd4a443dfe547aa622b21f723757df3fb","status":"affected","versionType":"git"},{"version":"24161b9c43de966789d5956428f45002d10f878e","lessThan":"835d3706852537bf92eb23eb8635b8dee0c0aa67","status":"affected","versionType":"git"},{"version":"ffc9019bd991707701273c2e5d8aed472229fc4d","lessThan":"83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba","status":"affected","versionType":"git"},{"version":"2de0e6a71ceb056e17e4684dce8b7640367996f9","lessThan":"bcea886771c3f22a590c8c8b9139a107bd7f1e1c","status":"affected","versionType":"git"},{"version":"640a476e38fce6c70c738ac09e5167e34f570303","lessThan":"5c968affa804ba98c3c603f37ffea6fba618025e","status":"affected","versionType":"git"},{"version":"3a56ef719f0b9682afb8a86d64b2399e36faa4e6","lessThan":"899663be5e75dc0174dc8bda0b5e6826edf0b29a","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_event.c"],"versions":[{"version":"4.4.300","lessThan":"4.4.302","status":"affected","versionType":"semver"},{"version":"4.9.298","lessThan":"4.9.300","status":"affected","versionType":"semver"},{"version":"4.14.263","lessThan":"4.14.265","status":"affected","versionType":"semver"},{"version":"4.19.226","lessThan":"4.19.228","status":"affected","versionType":"semver"},{"version":"5.4.174","lessThan":"5.4.176","status":"affected","versionType":"semver"},{"version":"5.10.94","lessThan":"5.10.96","status":"affected","versionType":"semver"},{"version":"5.15.17","lessThan":"5.15.19","status":"affected","versionType":"semver"},{"version":"5.16.3","lessThan":"5.16.5","status":"affected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4.300","versionEndExcluding":"4.4.302"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9.298","versionEndExcluding":"4.9.300"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.263","versionEndExcluding":"4.14.265"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.226","versionEndExcluding":"4.19.228"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.174","versionEndExcluding":"5.4.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.94","versionEndExcluding":"5.10.96"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.17","versionEndExcluding":"5.15.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16.3","versionEndExcluding":"5.16.5"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082"},{"url":"https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c"},{"url":"https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e"},{"url":"https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb"},{"url":"https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67"},{"url":"https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba"},{"url":"https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c"},{"url":"https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e"},{"url":"https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a"}],"title":"Bluetooth: refactor malicious adv data check","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-20T13:36:51.279922Z","id":"CVE-2021-47620","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-20T13:36:59.452Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:47:40.577Z"},"title":"CVE Program 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