CVE-2011-4100 Denial of service in n/a
Remote attackers can crash Wireshark by sending a malformed packet due to an uninitialized variable in the CSN.1 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-2011-4100?
CVE-2011-4100 is a medium-severity denial of service vulnerability in Wireshark Wireshark, published on 3 Nov 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The csnStreamDissector function in epan/dissectors/packet-csn1.c in the CSN.1 dissector in Wireshark 1.6.x before 1.6.3 does not initialize a certain variable, which allows remote attackers to cause a denial of service (application crash) via a malformed packet.
Weakness: CWE-399
Which versions are affected by CVE-2011-4100?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2011-4100?
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-2011-4100 being exploited?
There is no known exploitation of CVE-2011-4100 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2011-4100, GHSA-43qp-rp4g-mx9r.