CVE-2013-6340 Denial of service in n/a
Remote attackers can crash Wireshark via crafted TCP packets due to improper data length checks in the TCP 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-2013-6340?
CVE-2013-6340 is a medium-severity denial of service vulnerability in Wireshark Wireshark, published on 4 Nov 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
epan/dissectors/packet-tcp.c in the TCP dissector in Wireshark 1.8.x before 1.8.11 and 1.10.x before 1.10.3 does not properly determine the amount of remaining data, 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-2013-6340?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2013-6340?
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-2013-6340 being exploited?
There is no known exploitation of CVE-2013-6340 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2013-6340, GHSA-xc26-f3vv-9p8g.