CVE-2023-53146 (GCVE-0-2023-53146)
Vulnerability from cvelistv5
Published
2025-05-14 12:43
Modified
2025-05-14 12:43
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer() In dw2102_i2c_transfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach dw2102_i2c_transfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 950e252cb469 ("[media] dw2102: limit messages to buffer size")
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/dvb-usb/dw2102.c"
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          "vendor": "Linux",
          "versions": [
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              "versionType": "semver"
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              "version": "4.19.295",
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              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.257",
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              "lessThanOrEqual": "5.10.*",
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              "version": "5.10.197",
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              "version": "6.1.55",
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              "version": "6.5.5",
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              "version": "6.6",
              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()\n\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.\n\nSimilar commit:\ncommit 950e252cb469\n(\"[media] dw2102: limit messages to buffer size\")"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-14T12:43:59.117Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c"
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        {
          "url": "https://git.kernel.org/stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e"
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          "url": "https://git.kernel.org/stable/c/97fdbdb750342cbc204befde976872fedb406ee6"
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          "url": "https://git.kernel.org/stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d"
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        {
          "url": "https://git.kernel.org/stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74"
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          "url": "https://git.kernel.org/stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e"
        },
        {
          "url": "https://git.kernel.org/stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b"
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      ],
      "title": "media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53146",
    "datePublished": "2025-05-14T12:43:59.117Z",
    "dateReserved": "2025-05-02T15:51:43.565Z",
    "dateUpdated": "2025-05-14T12:43:59.117Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53146\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-14T13:15:47.083\",\"lastModified\":\"2025-05-16T14:43:56.797\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmedia: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()\\n\\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.\\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\\\")\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/97fdbdb750342cbc204befde976872fedb406ee6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/beb9550494e7349f92b9eaa283256a5ad9b1c9be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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