Write-what-where via BLE heap overflow
Published Apr 13, 2020 · Updated Aug 5, 2024
Out-of-bounds write in Cypress WICED Studio 6.2 allows remote attackers to corrupt BLE heap metadata via crafted adjacent-network packets. The dhmulp_getRxBuffer routine allocates a ThreadX block four bytes too small, allowing three packet bytes and one chosen CRC byte to overwrite a free-buffer list pointer and create a write-what-where condition. An unauthenticated attacker within Bluetooth radio range must transmit a crafted BLE packet; successful exploitation can alter memory and potentially compromise confidentiality, integrity, and availability.
Summary
What happened
Out-of-bounds write in Cypress WICED Studio 6.2 allows remote attackers to corrupt BLE heap metadata via crafted adjacent-network packets. The dhmulp_getRxBuffer routine allocates a ThreadX block four bytes too small, allowing three packet bytes and one chosen CRC byte to overwrite a free-buffer list pointer and create a write-what-where condition. An unauthenticated attacker within Bluetooth radio range must transmit a crafted BLE packet; successful exploitation can alter memory and potentially compromise confidentiality, integrity, and availability.
The record
- CVE
- CVE-2019-13916
- Published
- Apr 13, 2020
- Updated
- Aug 5, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 13, 2020CVE publishedPublication date reported by the CVE source.
- Aug 5, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Frankenstein CVE-2019-13916 proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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