CVE-2016-7957 Denial of service in n/a
A malformed Bluetooth L2CAP packet can crash Wireshark, allowing attackers to disrupt network analysis sessions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-7957?
CVE-2016-7957 is a high-severity denial of service vulnerability in Wireshark Wireshark, published on 12 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Wireshark 2.2.0, the Bluetooth L2CAP dissector could crash, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-btl2cap.c by avoiding use of a seven-byte memcmp for potentially shorter strings.
Weakness: CWE-20
Which versions are affected by CVE-2016-7957?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2016-7957?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-7957 being exploited?
There is no known exploitation of CVE-2016-7957 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2016-7957, GHSA-w25r-fmpr-8r73, UBUNTU-CVE-2016-7957.