CVE-2019-11516 Memory corruption in n/a
Heap-based buffer overflow in Cypress Bluetooth stack allows remote code execution via crafted Extended Inquiry Responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-11516?
CVE-2019-11516 is a high-severity memory corruption vulnerability in Google Android, published on 5 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-787
Which versions are affected by CVE-2019-11516?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2019-11516?
No fix has been published for CVE-2019-11516 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-11516 being exploited?
There is no known exploitation of CVE-2019-11516 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as GHSA-6624-pmgq-j9j4.