CVE-2011-1956 Null dereference in n/a
Remote attackers can crash Wireshark via arbitrary TCP traffic due to a NULL pointer dereference in the bytes_repr_len function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-1956?
CVE-2011-1956 is a medium-severity vulnerability in Wireshark Wireshark, published on 6 Jun 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The bytes_repr_len function in Wireshark 1.4.5 uses an incorrect pointer argument, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via arbitrary TCP traffic.
Which versions are affected by CVE-2011-1956?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2011-1956?
Upgrade to a fixed version.
Is CVE-2011-1956 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-1956 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2011-1956, GHSA-hqw9-f827-9xw8.