CVE-2009-2052 Denial of service in n/a

High 7.8 Published 27 Aug 2009 Updated 7 Aug 2024

Remote attackers can cause a TCP services outage in Cisco Unified Communications Manager and Presence by flooding the system with numerous TCP connections.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2009-2052?

CVE-2009-2052 is a high-severity denial of service vulnerability in Cisco Unified Communications Manager, published on 27 Aug 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), 7.0 before 7.0(2), and 7.1 before 7.1(2); and Cisco Unified Presence 1.x, 6.x before 6.0(6), and 7.x before 7.0(4); allows remote attackers to cause a denial of service (TCP services outage) via a large number of TCP connections, related to "tracking of network connections," aka Bug IDs CSCsq22534 and CSCsw52371.

Which versions are affected by CVE-2009-2052?

It affects 1 product.

Products include Cisco Unified Communications Manager.

How do I fix CVE-2009-2052?

No fix has been published for CVE-2009-2052 yet. Limit exposure of the affected software until one is available.

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-2009-2052 being exploited?

There is no known exploitation of CVE-2009-2052 in the wild and no public exploit code.

All Cisco Unified Communications Manager vulnerabilities

Sources

Also known as GHSA-qj8c-mx4x-hh37.