CVE-2019-11516
An issue was discovered in the Bluetooth component of the Cypress (formerly owned by Broadcom) Wireless IoT codebase. Extended Inquiry…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
An issue was discovered in the Bluetooth component of the Cypress (formerly owned by Broadcom) Wireless IoT codebase. Extended Inquiry Responses (EIRs) are improperly handled, which causes a heap-based buffer overflow during device inquiry. This overflow can be used to overwrite existing functions with arbitrary code. The Reserved for Future Use (RFU) bits are not discarded by eir_handleRx(), and are included in an EIR's length. Therefore, one can exceed the expected 240 bytes, which leads to a heap-based buffer overflow in eir_getReceivedEIR() called by bthci_event_SendInquiryResultEvent(). In order to exploit this bug, an attacker must repeatedly connect to the victim's device in a short amount of time from different source addresses. This will cause the victim's Bluetooth stack to resolve the device names and therefore allocate buffers with attacker-controlled data. Due to the heap corruption, the name will be eventually written to an attacker-controlled location, leading to a write-what-where condition.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.85% · top 41% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Weakness
Affected products
n/a
- affected n/a
References (4)
- https://source.android.com/security/bulletin/2019-08-01 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.cisecurity.org/advisory/multiple-vulnerabilities-in-google-android-os-could-allow-for-arbitrary-code-execution_2019-078/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.techrepublic.com/article/android-security-bulletin-august-2019-what-you-need-to-know/ (opens in a new tab)x_refsource_MISCx_transferred
- https://community.cypress.com/thread/53681 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-11516)Record last updated .