CVE-2017-6956 Memory corruption in n/a
A stack buffer overflow in Broadcom Wi-Fi firmware allows remote code execution via a malicious access point sending crafted 802.11r authentication responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-6956?
CVE-2017-6956 is a high-severity memory corruption vulnerability in n/a, published on 5 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
On the Broadcom Wi-Fi HardMAC SoC with fbt firmware, a stack buffer overflow occurs when handling an 802.11r (FT) authentication response, leading to remote code execution via a crafted access point that sends a long R0KH-ID field in a Fast BSS Transition Information Element (FT-IE).
Weakness: CWE-119
Which versions are affected by CVE-2017-6956?
It affects 1 product.
Products include Broadcom Hardmac Wi-Fi Soc Firmware.
How do I fix CVE-2017-6956?
No fix has been published for CVE-2017-6956 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-2017-6956 being exploited?
There is no known exploitation of CVE-2017-6956 in the wild and no public exploit code.
Sources
Also known as GHSA-mg9v-9r6v-6h88.