CVE-2015-8716 Denial of service in n/a

Medium 5.5 Published 4 Jan 2016 Updated 6 Aug 2024

Remote attackers can crash Wireshark via crafted T.38 packets due to missing conversation checks in the dissector.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2015-8716?

CVE-2015-8716 is a medium-severity denial of service vulnerability in Wireshark Wireshark, published on 4 Jan 2016. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

The init_t38_info_conv function in epan/dissectors/packet-t38.c in the T.38 dissector in Wireshark 1.12.x before 1.12.9 does not ensure that a conversation exists, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Weakness: CWE-20

Which versions are affected by CVE-2015-8716?

It affects 1 product.

Products include Wireshark Wireshark.

How do I fix CVE-2015-8716?

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-2015-8716 being exploited?

There is no known exploitation of CVE-2015-8716 in the wild and no public exploit code.

All Wireshark Wireshark vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-8716, GHSA-75q8-grmw-8gxg, UBUNTU-CVE-2015-8716.