CVE-2009-1789 Denial of service in n/a
Remote attackers can crash Eggdrop IRC bots by sending a crafted PRIVMSG, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-1789?
CVE-2009-1789 is a medium-severity denial of service vulnerability in n/a, published on 26 May 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
mod/server.mod/servmsg.c in Eggheads Eggdrop and Windrop 1.6.19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted PRIVMSG that causes an empty string to trigger a negative string length copy. NOTE: this issue exists because of an incorrect fix for CVE-2007-2807.
Which versions are affected by CVE-2009-1789?
It affects 3 products.
Products include Eggheads Eggdrop, Eggheads Eggdrop Irc Bot, Philip Moore Windrop.
How do I fix CVE-2009-1789?
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-2009-1789 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-1789 exists.
Public exploit code: 1 Exploit-DB entry.
Sources
Also known as DEBIAN-CVE-2009-1789, GHSA-v2pc-r45v-vq4h.