CVE-2013-0238 Denial of service in n/a
Remote attackers can crash the IRC server by sending a specially crafted mask that triggers a negative number parsing error.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-0238?
CVE-2013-0238 is a medium-severity denial of service vulnerability in n/a, published on 13 Feb 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The try_parse_v4_netmask function in hostmask.c in IRCD-Hybrid before 8.0.6 does not properly validate masks, which allows remote attackers to cause a denial of service (crash) via a mask that causes a negative number to be parsed.
Weakness: CWE-20
Which versions are affected by CVE-2013-0238?
It affects 1 product.
Products include Ircd-Hybrid Ircd-Hybrid.
How do I fix CVE-2013-0238?
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-2013-0238 being exploited?
There is no known exploitation of CVE-2013-0238 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2013-0238, DSA-2618-1, GHSA-9gxx-9pxw-xjp7.