CVE-2017-9345 Denial of service in n/a
An attacker can cause Wireshark to enter an infinite loop via crafted DNS packets, leading to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-9345?
CVE-2017-9345 is a high-severity denial of service vulnerability in Wireshark Wireshark, published on 2 Jun 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 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.
Weakness: CWE-835
Which versions are affected by CVE-2017-9345?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2017-9345?
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-2017-9345 being exploited?
There is no known exploitation of CVE-2017-9345 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as ALPINE-CVE-2017-9345, DEBIAN-CVE-2017-9345, GHSA-p85x-87p9-8xpq, UBUNTU-CVE-2017-9345.