{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47172","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-03-25T09:12:14.111Z","datePublished":"2024-03-25T09:16:23.741Z","dateUpdated":"2025-05-04T07:05:37.206Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:05:37.206Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ad7124: Fix potential overflow due to non sequential channel numbers\n\nChannel numbering must start at 0 and then not have any holes, or\nit is possible to overflow the available storage.  Note this bug was\nintroduced as part of a fix to ensure we didn't rely on the ordering\nof child nodes.  So we need to support arbitrary ordering but they all\nneed to be there somewhere.\n\nNote I hit this when using qemu to test the rest of this series.\nArguably this isn't the best fix, but it is probably the most minimal\noption for backporting etc.\n\nAlexandru's sign-off is here because he carried this patch in a larger\nset that Jonathan then applied."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/adc/ad7124.c"],"versions":[{"version":"5408cbc6337300d6f1a87c797273c535ed96305a","lessThan":"f49149964d2423fb618fb6b755bb1eaa431cca2c","status":"affected","versionType":"git"},{"version":"d7857e4ee1ba69732b16c73b2f2dde83ecd78ee4","lessThan":"f70122825076117787b91e7f219e21c09f11a5b9","status":"affected","versionType":"git"},{"version":"d7857e4ee1ba69732b16c73b2f2dde83ecd78ee4","lessThan":"26da8040eccc6c6b0e415e9a3baf72fd39eb2fdc","status":"affected","versionType":"git"},{"version":"d7857e4ee1ba69732b16c73b2f2dde83ecd78ee4","lessThan":"f2a772c51206b0c3f262e4f6a3812c89a650191b","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/adc/ad7124.c"],"versions":[{"version":"5.5","status":"affected"},{"version":"0","lessThan":"5.5","status":"unaffected","versionType":"semver"},{"version":"5.4.124","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.42","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.12.9","lessThanOrEqual":"5.12.*","status":"unaffected","versionType":"semver"},{"version":"5.13","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.14","versionEndExcluding":"5.4.124"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.12.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/f49149964d2423fb618fb6b755bb1eaa431cca2c"},{"url":"https://git.kernel.org/stable/c/f70122825076117787b91e7f219e21c09f11a5b9"},{"url":"https://git.kernel.org/stable/c/26da8040eccc6c6b0e415e9a3baf72fd39eb2fdc"},{"url":"https://git.kernel.org/stable/c/f2a772c51206b0c3f262e4f6a3812c89a650191b"}],"title":"iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-120","lang":"en","description":"CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-07-17T17:18:44.850824Z","id":"CVE-2021-47172","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":"2024-11-06T15:29:32.072Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:24:40.144Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/f49149964d2423fb618fb6b755bb1eaa431cca2c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/f70122825076117787b91e7f219e21c09f11a5b9","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/26da8040eccc6c6b0e415e9a3baf72fd39eb2fdc","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/f2a772c51206b0c3f262e4f6a3812c89a650191b","tags":["x_transferred"]}]}]}}