CVE-2020-13164 Denial of service in n/a
A remote attacker can cause a denial of service in Wireshark by sending crafted NFS packets that trigger excessive recursion in the 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-2020-13164?
CVE-2020-13164 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 19 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Wireshark 3.2.0 to 3.2.3, 3.0.0 to 3.0.10, and 2.6.0 to 2.6.16, the NFS dissector could crash. This was addressed in epan/dissectors/packet-nfs.c by preventing excessive recursion, such as for a cycle in the directory graph on a filesystem.
Weakness: CWE-674
Which versions are affected by CVE-2020-13164?
It affects 4 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Opensuse Leap, Wireshark Wireshark.
How do I fix CVE-2020-13164?
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-2020-13164 being exploited?
There is no known exploitation of CVE-2020-13164 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-13164, GHSA-fmgx-6m2h-qh4r, UBUNTU-CVE-2020-13164.