Wireshark · Wireshark · CVE-2020-13164
**Name of the Vulnerable Software and Affected Versions**
Wireshark versions 2.6.0 through 2.6.16
Wireshark versions 3.0.0 through 3.0.10
Wireshark versions 3.2.0 through 3.2.3
**Description**
The issue is related to uncontrolled recursion in the NFS dissector, which could allow a remote attacker to cause a denial of service. The problem occurs due to excessive recursion, such as when encountering a cycle in the directory graph on a filesystem. This can lead to a crash of the NFS dissector.
**Recommendations**
For Wireshark versions 2.6.0 through 2.6.16, update the epan/dissectors/packet-nfs.c file to prevent excessive recursion.
For Wireshark versions 3.0.0 through 3.0.10, update the epan/dissectors/packet-nfs.c file to prevent excessive recursion.
For Wireshark versions 3.2.0 through 3.2.3, update the epan/dissectors/packet-nfs.c file to prevent excessive recursion.
As a temporary workaround, consider disabling the NFS dissector until a patch is available.