CVE-2023-53146

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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 950e252cb469\n(\"[media] dw2102: limit messages to buffer size\")"}], "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/dw2102.c"], "versions": [{"version": "7fd4828f6cc5bd4339ff58e372ccb5f528548b30", "lessThan": "77cbd42d29de9ffc93d5529bab8813cde53af14c", "status": "affected", "versionType": "git"}, {"version": "7fd4828f6cc5bd4339ff58e372ccb5f528548b30", "lessThan": "ecbe6d011b95c7da59f014f8d26cb7245ed1e11e", "status": "affected", "versionType": "git"}, {"version": "7fd4828f6cc5bd4339ff58e372ccb5f528548b30", "lessThan": "beb9550494e7349f92b9eaa283256a5ad9b1c9be", "status": "affected", "versionType": "git"}, {"version": "7fd4828f6cc5bd4339ff58e372ccb5f528548b30", "lessThan": "97fdbdb750342cbc204befde976872fedb406ee6", "status": "affected", "versionType": "git"}, {"version": "7fd4828f6cc5bd4339ff58e372ccb5f528548b30", "lessThan": "903566208ae6bb9c0e7e54355ce75bf6cf72485d", "status": "affected", "versionType": "git"}, {"version": "7fd4828f6cc5bd4339ff58e372ccb5f528548b30", "lessThan": "08dfcbd03b2b7f918c4f87c6ff637054e510df74", "status": "affected", "versionType": "git"}, {"version": "7fd4828f6cc5bd4339ff58e372ccb5f528548b30", "lessThan": "fb28afab113a82b89ffec48c8155ec05b4f8cb5e", "status": "affected", "versionType": "git"}, {"version": "7fd4828f6cc5bd4339ff58e372ccb5f528548b30", "lessThan": "5ae544d94abc8ff77b1b9bf8774def3fa5689b5b", "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/dw2102.c"], "versions": [{"version": "2.6.27", "status": "affected"}, {"version": "0", "lessThan": "2.6.27", "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": "2.6.27", "versionEndExcluding": "4.14.326"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "4.19.295"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "5.4.257"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "5.10.197"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "5.15.133"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "6.1.55"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "6.5.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "6.6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c"}, {"url": "https://git.kernel.org/stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e"}, {"url": "https://git.kernel.org/stable/c/beb9550494e7349f92b9eaa283256a5ad9b1c9be"}, {"url": "https://git.kernel.org/stable/c/97fdbdb750342cbc204befde976872fedb406ee6"}, {"url": "https://git.kernel.org/stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d"}, {"url": "https://git.kernel.org/stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74"}, {"url": "https://git.kernel.org/stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e"}, {"url": "https://git.kernel.org/stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b"}], "title": "media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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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 dw2102_i2c_transfer. 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 950e252cb469\n(\"[media] dw2102: limit messages to buffer size\")"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: dw2102: Se ha corregido la correcci\u00f3n de null-ptr-deref en dw2102_i2c_transfer(). En dw2102_i2c_transfer, el usuario controla msg. Cuando msg[i].buf es nulo y msg[i].len es cero, se superan las comprobaciones previas de msg[i].buf. Los datos maliciosos finalmente llegan a dw2102_i2c_transfer. Si se accede a msg[i].buf[0] sin una comprobaci\u00f3n de seguridad, se produce una correcci\u00f3n de ptr nula. Se ha a\u00f1adido una comprobaci\u00f3n de msg[i].len para evitar un fallo. Commit similar: commit 950e252cb469 (\"[media] dw2102: limitar los mensajes al tama\u00f1o del b\u00fafer\")"}], "id": "CVE-2023-53146", "lastModified": "2026-06-17T06:44:23.090", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-05-14T13:15:47.083", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/97fdbdb750342cbc204befde976872fedb406ee6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/beb9550494e7349f92b9eaa283256a5ad9b1c9be"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()", "id": "2366237", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2366237"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()\nIn dw2102_i2c_transfer, 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 dw2102_i2c_transfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\nSimilar commit:\ncommit 950e252cb469\n(\"[media] dw2102: limit messages to buffer size\")"], "name": "CVE-2023-53146", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53146\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53146\nhttps://lore.kernel.org/linux-cve-announce/2025051417-CVE-2023-53146-db0e@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T11:32:14.131936+00:00", "updated": "2025-07-13T11:32:14.131994+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}