CVE-2011-1753 Denial of service in n/a
Remote attackers can cause denial of service via crafted XML with nested entities in ejabberd and exmpp servers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-1753?
CVE-2011-1753 is a medium-severity denial of service vulnerability in n/a, published on 21 Jun 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
expat_erl.c in ejabberd before 2.1.7 and 3.x before 3.0.0-alpha-3, and exmpp before 0.9.7, does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.
Weakness: CWE-399
Which versions are affected by CVE-2011-1753?
It affects 2 products.
Products include Process-One Ejabberd, Process-One Exmpp.
How do I fix CVE-2011-1753?
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-2011-1753 being exploited?
There is no known exploitation of CVE-2011-1753 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2011-1753, DSA-2248-1, GHSA-35cw-298h-r635.