CVE-2014-4020 Integer overflow in n/a

Medium 4.3 Published 18 Jun 2014 Updated 6 Aug 2024

Remote attackers can crash Wireshark by sending a crafted packet that triggers an integer overflow in the frame 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-2014-4020?

CVE-2014-4020 is a medium-severity vulnerability in Wireshark Wireshark, published on 18 Jun 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The dissect_frame function in epan/dissectors/packet-frame.c in the frame metadissector in Wireshark 1.10.x before 1.10.8 interprets a negative integer as a length value even though it was intended to represent an error condition, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Weakness: CWE-189

Which versions are affected by CVE-2014-4020?

It affects 1 product.

Products include Wireshark Wireshark.

How do I fix CVE-2014-4020?

Upgrade to a fixed version.

Is CVE-2014-4020 being exploited?

There is no known exploitation of CVE-2014-4020 in the wild and no public exploit code.

All Wireshark Wireshark vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-4020, GHSA-wjph-7m4v-g4mr, MGASA-2014-0264, UBUNTU-CVE-2014-4020.