CVE-2011-4939 Null dereference in n/a
Remote attackers can crash Pidgin by changing nicknames in XMPP chats, causing a denial of service via null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-4939?
CVE-2011-4939 is a medium-severity vulnerability in Pidgin Pidgin, published on 15 Mar 2012. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by changing a nickname while in an XMPP chat room.
Weakness: CWE-264
Which versions are affected by CVE-2011-4939?
It affects 1 product.
Products include Pidgin Pidgin.
How do I fix CVE-2011-4939?
Upgrade to a fixed version.
Is CVE-2011-4939 being exploited?
There is no known exploitation of CVE-2011-4939 in the wild and no public exploit code.
Other vulnerabilities in Pidgin Pidgin
Sources
Also known as DEBIAN-CVE-2011-4939, GHSA-fqpj-4v5c-wf35.