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vuln-cve/data/2023/53xxx/CVE-2023-53220.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2023-53220",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-09-15T14:19:21.845Z",
"datePublished": "2025-09-15T14:21:49.075Z",
"dateUpdated": "2026-05-11T19:40:35.199Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T19:40:35.199Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: az6007: Fix null-ptr-deref in az6007_i2c_xfer()\n\nIn az6007_i2c_xfer, msg is controlled by user. When msg[i].buf\nis null and msg[i].len is zero, former checks on msg[i].buf would be\npassed. Malicious data finally reach az6007_i2c_xfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\n\nSimilar commit:\ncommit 0ed554fd769a\n(\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/media/usb/dvb-usb-v2/az6007.c"
],
"versions": [
{
"version": "caa1a700ed2a06a831e6a7db5d9f213fc63caee3",
"lessThan": "c6763fefa267f6e62595a6ac1f57815d99fc90b7",
"status": "affected",
"versionType": "git"
},
{
"version": "caa1a700ed2a06a831e6a7db5d9f213fc63caee3",
"lessThan": "adcb73f8ce9aec48b1f85223f401c1574015d8d2",
"status": "affected",
"versionType": "git"
},
{
"version": "caa1a700ed2a06a831e6a7db5d9f213fc63caee3",
"lessThan": "991c77fe18c6f374bbf83376f8c42550aa565662",
"status": "affected",
"versionType": "git"
},
{
"version": "caa1a700ed2a06a831e6a7db5d9f213fc63caee3",
"lessThan": "a9def3e9718a4dc756f48db147d42ec41a966240",
"status": "affected",
"versionType": "git"
},
{
"version": "caa1a700ed2a06a831e6a7db5d9f213fc63caee3",
"lessThan": "5b1ea100ad3695025969dc4693f307877fb688d6",
"status": "affected",
"versionType": "git"
},
{
"version": "caa1a700ed2a06a831e6a7db5d9f213fc63caee3",
"lessThan": "6ab7ea4e17d6a605d05308adf8f3408924770cba",
"status": "affected",
"versionType": "git"
},
{
"version": "caa1a700ed2a06a831e6a7db5d9f213fc63caee3",
"lessThan": "a1110f19d4940e4185251d072cbb0ff51486a1e7",
"status": "affected",
"versionType": "git"
},
{
"version": "caa1a700ed2a06a831e6a7db5d9f213fc63caee3",
"lessThan": "1047f9343011f2cedc73c64829686206a7e9fc3f",
"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/media/usb/dvb-usb-v2/az6007.c"
],
"versions": [
{
"version": "3.4",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.4",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.14.326",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.295",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.257",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.197",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.133",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.55",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.5.5",
"lessThanOrEqual": "6.5.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6",
"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": "3.4",
"versionEndExcluding": "4.14.326"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.4",
"versionEndExcluding": "4.19.295"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.4",
"versionEndExcluding": "5.4.257"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.4",
"versionEndExcluding": "5.10.197"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.4",
"versionEndExcluding": "5.15.133"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.4",
"versionEndExcluding": "6.1.55"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.4",
"versionEndExcluding": "6.5.5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.4",
"versionEndExcluding": "6.6"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/c6763fefa267f6e62595a6ac1f57815d99fc90b7"
},
{
"url": "https://git.kernel.org/stable/c/adcb73f8ce9aec48b1f85223f401c1574015d8d2"
},
{
"url": "https://git.kernel.org/stable/c/991c77fe18c6f374bbf83376f8c42550aa565662"
},
{
"url": "https://git.kernel.org/stable/c/a9def3e9718a4dc756f48db147d42ec41a966240"
},
{
"url": "https://git.kernel.org/stable/c/5b1ea100ad3695025969dc4693f307877fb688d6"
},
{
"url": "https://git.kernel.org/stable/c/6ab7ea4e17d6a605d05308adf8f3408924770cba"
},
{
"url": "https://git.kernel.org/stable/c/a1110f19d4940e4185251d072cbb0ff51486a1e7"
},
{
"url": "https://git.kernel.org/stable/c/1047f9343011f2cedc73c64829686206a7e9fc3f"
}
],
"title": "media: az6007: Fix null-ptr-deref in az6007_i2c_xfer()",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"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": {
"id": "CVE-2023-53220",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-01-14T17:50:08.533952Z"
}
}
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference"
}
]
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-01-14T17:52:58.476Z"
}
}
]
}
}