CVE-2011-4905 Denial of Service in Apache ActiveMQ
Remote attackers can crash or hang Apache ActiveMQ brokers by exhausting file descriptors via repeated failover connection requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-4905?
CVE-2011-4905 is a medium-severity denial of service vulnerability in Apache Activemq, published on 5 Jan 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.
Weakness: CWE-399
Which versions are affected by CVE-2011-4905?
2 open source packages ship an affected version, including org.apache.activemq:activemq-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.activemq:activemq-core Maven | All versions | 5.6.0 |
org.apache.activemq:activemq-core Maven | All versions | 5.6.0 |
Products include Apache Activemq.
How do I fix CVE-2011-4905?
Upgrade org.apache.activemq:activemq-core to 5.6.0 or later.
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-2011-4905 being exploited?
There is no known exploitation of CVE-2011-4905 in the wild and no public exploit code.
Other vulnerabilities in Apache Activemq
Sources
Also known as DEBIAN-CVE-2011-4905, GHSA-9wcx-326r-7j7w.