CVE-2017-7704 Denial of service in n/a
An attacker can cause a denial of service in Wireshark via a malformed capture file or packet injection, triggering an infinite loop in the DOF dissector.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-7704?
CVE-2017-7704 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 to 2.2.5, the DOF dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-dof.c by using a different integer data type and adjusting a return value.
Weakness: CWE-835
Which versions are affected by CVE-2017-7704?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2017-7704?
Upgrade to a fixed version.
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-2017-7704 being exploited?
There is no known exploitation of CVE-2017-7704 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as ALPINE-CVE-2017-7704, DEBIAN-CVE-2017-7704, GHSA-rq7r-p3cv-r9gr, UBUNTU-CVE-2017-7704.