CVE-2016-4077 Use after free in n/a
Remote attackers can cause a denial of service via a crafted packet due to a use-after-free error in Wireshark's packet reassembly logic.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-4077?
CVE-2016-4077 is a medium-severity use after free vulnerability in Wireshark Wireshark, published on 25 Apr 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
epan/reassemble.c in TShark in Wireshark 2.0.x before 2.0.3 relies on incorrect special-case handling of truncated Tvb data structures, which allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted packet.
Which versions are affected by CVE-2016-4077?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2016-4077?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2016-4077 being exploited?
There is no known exploitation of CVE-2016-4077 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2016-4077, GHSA-4hqv-646p-m5g8, UBUNTU-CVE-2016-4077.