CVE-2024-56605 (GCVE-0-2024-56605)

Vulnerability from cvelistv5 – Published: 2024-12-27 14:51 – Updated: 2026-05-11 20:55
VLAI
Title
Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() bt_sock_alloc() allocates the sk object and attaches it to the provided sock object. On error l2cap_sock_alloc() frees the sk object, but the dangling pointer is still attached to the sock object, which may create use-after-free in other code.
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: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 49dfbb9129c4edb318578de35cc45c555df37884 , < f6ad641646b67f29c7578dcd6c25813c7dcbf51e (git)
Affected: 49dfbb9129c4edb318578de35cc45c555df37884 , < daa13175a6dea312a76099066cb4cbd4fc959a84 (git)
Affected: 49dfbb9129c4edb318578de35cc45c555df37884 , < a8677028dd5123e5e525b8195483994d87123de4 (git)
Affected: 49dfbb9129c4edb318578de35cc45c555df37884 , < bb2f2342a6ddf7c04f9aefbbfe86104cd138e629 (git)
Affected: 49dfbb9129c4edb318578de35cc45c555df37884 , < 8ad09ddc63ace3950ac43db6fbfe25b40f589dd6 (git)
Affected: 49dfbb9129c4edb318578de35cc45c555df37884 , < 61686abc2f3c2c67822aa23ce6f160467ec83d35 (git)
Affected: 49dfbb9129c4edb318578de35cc45c555df37884 , < 7c4f78cdb8e7501e9f92d291a7d956591bf73be9 (git)
Create a notification for this product.
Linux Linux Affected: 3.6
Unaffected: 0 , < 3.6 (semver)
Unaffected: 5.4.287 , ≤ 5.4.* (semver)
Unaffected: 5.10.231 , ≤ 5.10.* (semver)
Unaffected: 5.15.174 , ≤ 5.15.* (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.66 , ≤ 6.6.* (semver)
Unaffected: 6.12.5 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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En caso de error, l2cap_sock_alloc() libera el objeto sk, pero el puntero colgando sigue adjunto al objeto sock, lo que puede crear un use-after-free en otro 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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T20:50:51.126Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-56605\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-11T15:42:08.177341Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-11T15:42:09.612Z\"}}], \"cna\": {\"title\": \"Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"49dfbb9129c4edb318578de35cc45c555df37884\", \"lessThan\": \"f6ad641646b67f29c7578dcd6c25813c7dcbf51e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"49dfbb9129c4edb318578de35cc45c555df37884\", \"lessThan\": \"daa13175a6dea312a76099066cb4cbd4fc959a84\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"49dfbb9129c4edb318578de35cc45c555df37884\", \"lessThan\": \"a8677028dd5123e5e525b8195483994d87123de4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"49dfbb9129c4edb318578de35cc45c555df37884\", \"lessThan\": \"bb2f2342a6ddf7c04f9aefbbfe86104cd138e629\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"49dfbb9129c4edb318578de35cc45c555df37884\", \"lessThan\": \"8ad09ddc63ace3950ac43db6fbfe25b40f589dd6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"49dfbb9129c4edb318578de35cc45c555df37884\", \"lessThan\": \"61686abc2f3c2c67822aa23ce6f160467ec83d35\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"49dfbb9129c4edb318578de35cc45c555df37884\", \"lessThan\": \"7c4f78cdb8e7501e9f92d291a7d956591bf73be9\", \"versionType\": \"git\"}], \"programFiles\": [\"net/bluetooth/l2cap_sock.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.6\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.6\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.287\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.231\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.174\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.66\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/l2cap_sock.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f6ad641646b67f29c7578dcd6c25813c7dcbf51e\"}, {\"url\": \"https://git.kernel.org/stable/c/daa13175a6dea312a76099066cb4cbd4fc959a84\"}, {\"url\": \"https://git.kernel.org/stable/c/a8677028dd5123e5e525b8195483994d87123de4\"}, {\"url\": \"https://git.kernel.org/stable/c/bb2f2342a6ddf7c04f9aefbbfe86104cd138e629\"}, {\"url\": \"https://git.kernel.org/stable/c/8ad09ddc63ace3950ac43db6fbfe25b40f589dd6\"}, {\"url\": \"https://git.kernel.org/stable/c/61686abc2f3c2c67822aa23ce6f160467ec83d35\"}, {\"url\": \"https://git.kernel.org/stable/c/7c4f78cdb8e7501e9f92d291a7d956591bf73be9\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()\\n\\nbt_sock_alloc() allocates the sk object and attaches it to the provided\\nsock object. On error l2cap_sock_alloc() frees the sk object, but the\\ndangling pointer is still attached to the sock object, which may create\\nuse-after-free in other code.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.287\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.231\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.174\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.120\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.66\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.5\", \"versionStartIncluding\": \"3.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"3.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:55:41.747Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-56605\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:55:41.747Z\", \"dateReserved\": \"2024-12-27T14:03:06.013Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-12-27T14:51:10.344Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.





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.