CVE-2006-3121 Denial of service in n/a
Remote attackers can crash High-Availability Linux heartbeat subsystems by sending malformed heartbeat messages with invalid length parameters.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2006-3121?
CVE-2006-3121 is a medium-severity denial of service vulnerability in n/a, published on 17 Aug 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability Linux before 1.2.5, and 2.0 before 2.0.7, allows remote attackers to cause a denial of service (crash) via the length parameter in a heartbeat message.
Weakness: CWE-399
Which versions are affected by CVE-2006-3121?
It affects 1 product.
Products include High Availability Linux Project Heartbeat.
How do I fix CVE-2006-3121?
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-2006-3121 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-3121 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2006-3121, DSA-1151-1, GHSA-qj99-gqqj-q94c.