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CVE-2024-47697 (GCVE-0-2024-47697)

Vulnerability from cvelistv5 – Published: 2024-10-21 11:53 – Updated: 2026-08-05 11:39
VLAI
Title
drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error
Summary
In the Linux kernel, the following vulnerability has been resolved: drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error Ensure index in rtl2830_pid_filter does not exceed 31 to prevent out-of-bounds access. dev->filters is a 32-bit value, so set_bit and clear_bit functions should only operate on indices from 0 to 31. If index is 32, it will attempt to access a non-existent 33rd bit, leading to out-of-bounds access. Change the boundary check from index > 32 to index >= 32 to resolve this issue.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-21 13:05 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 , < 8ffbe7d07b8e76193b151107878ddc1ccc94deb5 (git)
Affected: df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 , < 883f794c6e498ae24680aead55c16f66b06cfc30 (git)
Affected: df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 , < badbd736e6649c4e6d7b4ff7e2b9857acfa9ea94 (git)
Affected: df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 , < 86d920d2600c3a48efc2775c1666c1017eec6956 (git)
Affected: df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 , < 3dba83d3c81de1368d15a39f22df7b53e306052f (git)
Affected: df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 , < 58f31be7dfbc0c84a6497ad51924949cf64b86a2 (git)
Affected: df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 , < 7fd6aae7e53b94f4035b1bfce28b8dfa0d0ae470 (git)
Affected: df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 , < 042b101d7bf70616c4967c286ffa6fcca65babfb (git)
Affected: df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 , < 46d7ebfe6a75a454a5fa28604f0ef1491f9d8d14 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 4.19.323 , ≤ 4.19.* (semver)
Unaffected: 5.4.285 , ≤ 5.4.* (semver)
Unaffected: 5.10.227 , ≤ 5.10.* (semver)
Unaffected: 5.15.168 , ≤ 5.15.* (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.54 , ≤ 6.6.* (semver)
Unaffected: 6.10.13 , ≤ 6.10.* (semver)
Unaffected: 6.11.2 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens RUGGEDCOM RST2428P Unaffected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Unaffected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Unaffected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website
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    "microsoft_vex": {
      "current_release_date": "2026-02-18T15:00:41.000Z",
      "cve": "CVE-2024-47697",
      "id": "msrc_CVE-2024-47697",
      "initial_release_date": "2024-10-01T07:00:00.000Z",
      "product_status:fixed": "5",
      "product_status:known_affected": "5",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-47697.json",
      "version": "3"
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If index is 32, it will attempt to\\naccess a non-existent 33rd bit, leading to out-of-bounds access.\\nChange the boundary check from index \u003e 32 to index \u003e= 32 to resolve this\\nissue.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drivers: media: dvb-frontends/rtl2830: corrige un error de escritura fuera de los l\u00edmites Aseg\u00farate de que el \u00edndice en rtl2830_pid_filter no supere 31 para evitar el acceso fuera de los l\u00edmites. dev-\u0026gt;filters es un valor de 32 bits, por lo que las funciones set_bit y clear_bit solo deben funcionar en \u00edndices de 0 a 31. Si el \u00edndice es 32, intentar\u00e1 acceder a un bit 33 inexistente, lo que provocar\u00e1 un acceso fuera de los l\u00edmites. Cambia la comprobaci\u00f3n de l\u00edmites de \u00edndice \u0026gt; 32 a \u00edndice \u0026gt;= 32 para resolver este problema.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/media/dvb-frontends/rtl2830.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\",\"lessThan\":\"8ffbe7d07b8e76193b151107878ddc1ccc94deb5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\",\"lessThan\":\"883f794c6e498ae24680aead55c16f66b06cfc30\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\",\"lessThan\":\"badbd736e6649c4e6d7b4ff7e2b9857acfa9ea94\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\",\"lessThan\":\"86d920d2600c3a48efc2775c1666c1017eec6956\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\",\"lessThan\":\"3dba83d3c81de1368d15a39f22df7b53e306052f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\",\"lessThan\":\"58f31be7dfbc0c84a6497ad51924949cf64b86a2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\",\"lessThan\":\"7fd6aae7e53b94f4035b1bfce28b8dfa0d0ae470\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\",\"lessThan\":\"042b101d7bf70616c4967c286ffa6fcca65babfb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\",\"lessThan\":\"46d7ebfe6a75a454a5fa28604f0ef1491f9d8d14\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/media/dvb-frontends/rtl2830.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.0\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.0\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.323\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.285\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.227\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.168\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.113\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.54\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.13\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11.2\",\"lessThanOrEqual\":\"6.11.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM 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      "product_status:known_affected": "76",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-47697.json",
      "version": "3"
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      "initial_release_date": "2024-10-21T15:47:28Z",
      "product_status:known_affected": "638",
      "product_status:known_not_affected": "47",
      "product_status:recommended": "676",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-47697",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-47697.json",
      "version": "71"
    },
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No network or remote-peer data reaches rtl2830_pid_filter().\\nAC:L - The attacker drives the path deterministically by adding PID filter feeds via ioctl on an already-attached RTL2831U tuner; there is no race, no memory-layout dependency, and no unpredictable state involved in reaching the boundary check.\\nPR:L - No capability check exists on the path \\u2014 dvb_usb_start_feed() and rtl28xxu_pid_filter() perform no privilege validation \\u2014 so only permission to open the DVB demux character device (commonly the video group, and world-accessible on many embedded/set-top media appliances) is needed.\\nUI:N - Once the tuner device is bound, the attacker triggers the path entirely on their own via ioctls on the demux node; no victim action is required.\\nS:U - The out-of-bounds write and any resulting corruption stay within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\\nC:H - An out-of-bounds bit write past the end of the filters bitmap corrupts adjacent kernel memory in struct rtl2830_dev, and per kernel scoring guidance memory corruption of this kind is treated as leverageable toward information disclosure.\\nI:H - This is an out-of-bounds write \\u2014 set_bit()/clear_bit() operate on bit 32 of a 32-bit filter bitmap, modifying kernel memory outside the intended object field, and the register write also goes past the end of the demodulator\u0027s PID register block.\\nA:H - Corrupting kernel memory adjacent to the filter bitmap (including the driver\u0027s fe_status word on 32-bit builds) and writing an out-of-range demodulator register can leave the driver and device in an inconsistent state leading to a crash or hang.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\", \"lessThan\": \"8ffbe7d07b8e76193b151107878ddc1ccc94deb5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\", \"lessThan\": \"883f794c6e498ae24680aead55c16f66b06cfc30\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\", \"lessThan\": \"badbd736e6649c4e6d7b4ff7e2b9857acfa9ea94\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\", \"lessThan\": \"86d920d2600c3a48efc2775c1666c1017eec6956\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\", \"lessThan\": \"3dba83d3c81de1368d15a39f22df7b53e306052f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\", \"lessThan\": \"58f31be7dfbc0c84a6497ad51924949cf64b86a2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\", \"lessThan\": \"7fd6aae7e53b94f4035b1bfce28b8dfa0d0ae470\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\", \"lessThan\": \"042b101d7bf70616c4967c286ffa6fcca65babfb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"df70ddad81b47c57bcccffc805fbd75f2f1b2dc6\", \"lessThan\": \"46d7ebfe6a75a454a5fa28604f0ef1491f9d8d14\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/media/dvb-frontends/rtl2830.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.0\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.323\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.285\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.227\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.168\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.113\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.54\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/media/dvb-frontends/rtl2830.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/8ffbe7d07b8e76193b151107878ddc1ccc94deb5\"}, {\"url\": \"https://git.kernel.org/stable/c/883f794c6e498ae24680aead55c16f66b06cfc30\"}, {\"url\": \"https://git.kernel.org/stable/c/badbd736e6649c4e6d7b4ff7e2b9857acfa9ea94\"}, {\"url\": \"https://git.kernel.org/stable/c/86d920d2600c3a48efc2775c1666c1017eec6956\"}, {\"url\": \"https://git.kernel.org/stable/c/3dba83d3c81de1368d15a39f22df7b53e306052f\"}, {\"url\": \"https://git.kernel.org/stable/c/58f31be7dfbc0c84a6497ad51924949cf64b86a2\"}, {\"url\": \"https://git.kernel.org/stable/c/7fd6aae7e53b94f4035b1bfce28b8dfa0d0ae470\"}, {\"url\": \"https://git.kernel.org/stable/c/042b101d7bf70616c4967c286ffa6fcca65babfb\"}, {\"url\": \"https://git.kernel.org/stable/c/46d7ebfe6a75a454a5fa28604f0ef1491f9d8d14\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error\\n\\nEnsure index in rtl2830_pid_filter does not exceed 31 to prevent\\nout-of-bounds access.\\n\\ndev-\u003efilters is a 32-bit value, so set_bit and clear_bit functions should\\nonly operate on indices from 0 to 31. If index is 32, it will attempt to\\naccess a non-existent 33rd bit, leading to out-of-bounds access.\\nChange the boundary check from index \u003e 32 to index \u003e= 32 to resolve this\\nissue.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.323\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.285\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.227\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.168\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.113\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.54\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.13\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.2\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"4.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:39:30.431Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-47697\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:39:30.431Z\", \"dateReserved\": \"2024-09-30T16:00:12.942Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T11:53:34.630Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.