Vulnerability-Lookup

GHSA-6558-6JWP-R9Q4

Vulnerability from github – Published: 2022-05-24 17:14 – Updated: 2022-05-24 17:14

Details

An issue was discovered in Cypress (formerly Broadcom) WICED Studio 6.2 CYW20735B1 and CYW20819A1. As a Bluetooth Low Energy (BLE) packet is received, it is copied into a Heap (ThreadX Block) buffer. The buffer allocated in dhmulp_getRxBuffer is four bytes too small to hold the maximum of 255 bytes plus headers. It is possible to corrupt a pointer in the linked list holding the free buffers of the g_mm_BLEDeviceToHostPool Block pool. This pointer can be fully controlled by overflowing with 3 bytes of packet data and the first byte of the packet CRC checksum. The checksum can be freely chosen by adapting the packet data accordingly. An attacker might be able to allocate the overwritten address as a receive buffer resulting in a write-what-where condition. This is fixed in BT SDK2.4 and BT SDK2.45.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-13916"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-04-13T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Cypress (formerly Broadcom) WICED Studio 6.2 CYW20735B1 and CYW20819A1. As a Bluetooth Low Energy (BLE) packet is received, it is copied into a Heap (ThreadX Block) buffer. The buffer allocated in dhmulp_getRxBuffer is four bytes too small to hold the maximum of 255 bytes plus headers. It is possible to corrupt a pointer in the linked list holding the free buffers of the g_mm_BLEDeviceToHostPool Block pool. This pointer can be fully controlled by overflowing with 3 bytes of packet data and the first byte of the packet CRC checksum. The checksum can be freely chosen by adapting the packet data accordingly. An attacker might be able to allocate the overwritten address as a receive buffer resulting in a write-what-where condition. This is fixed in BT SDK2.4 and BT SDK2.45.",
  "id": "GHSA-6558-6jwp-r9q4",
  "modified": "2022-05-24T17:14:03Z",
  "published": "2022-05-24T17:14:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-13916"
    },
    {
      "type": "WEB",
      "url": "https://community.cypress.com/thread/53681"
    },
    {
      "type": "WEB",
      "url": "https://github.com/seemoo-lab/frankenstein/blob/master/doc/CVE_2019_13916.md"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2019-13916 (GCVE-0-2019-13916)

Vulnerability from cvelistv5 – Published: 2020-04-13 16:30 – Updated: 2024-08-05 00:05

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

2 references

URL	Tags
https://community.cypress.com/thread/53681	x_refsource_MISC
https://github.com/seemoo-lab/frankenstein/blob/m…	x_refsource_MISC

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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.

Action not permitted

GHSA-6558-6JWP-R9Q4

CVE-2019-13916 (GCVE-0-2019-13916)

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Sightings

Nomenclature