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CVE-2011-2561

UnknownEPSS 1.06%

Last modified

CVE-2011-2561 is a vulnerability of currently unknown severity. The SIP process in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 7.x before 7.1(5b)su4 and 8.x before 8.0(1) does not properly handle SDP data within a SIP call in certain situations related to use of the g729ar8 codec for a Media Termination Point (MTP), which allows remote attackers to cause a denial of service (service outage) via a crafted call, aka Bug ID CSCtc61990.. EPSS estimates a 1.06% chance of exploitation in the next 30 days.

Description

The SIP process in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 7.x before 7.1(5b)su4 and 8.x before 8.0(1) does not properly handle SDP data within a SIP call in certain situations related to use of the g729ar8 codec for a Media Termination Point (MTP), which allows remote attackers to cause a denial of service (service outage) via a crafted call, aka Bug ID CSCtc61990.

Metrics

EPSS Probability
1.06%

60.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoUnified Communications Manager7.0\(1\)su1
CiscoUnified Communications Manager7.0\(1\)su1a
CiscoUnified Communications Manager7.0\(2\)
CiscoUnified Communications Manager7.0\(2a\)
CiscoUnified Communications Manager7.0\(2a\)su1
CiscoUnified Communications Manager7.0\(2a\)su2
CiscoUnified Communications Manager7.1\(2a\)
CiscoUnified Communications Manager7.1\(2a\)su1
CiscoUnified Communications Manager7.1\(2b\)
CiscoUnified Communications Manager7.1\(2b\)su1
CiscoUnified Communications Manager7.1\(3\)
CiscoUnified Communications Manager7.1\(3a\)
CiscoUnified Communications Manager7.1\(3a\)su1
CiscoUnified Communications Manager7.1\(3a\)su1a
CiscoUnified Communications Manager7.1\(3b\)
CiscoUnified Communications Manager7.1\(3b\)su1
CiscoUnified Communications Manager7.1\(3b\)su2
CiscoUnified Communications Manager7.1\(5\)
CiscoUnified Communications Manager7.1\(5\)su1
CiscoUnified Communications Manager7.1\(5\)su1a
CiscoUnified Communications Manager7.1\(5a\)
CiscoUnified Communications Manager7.1\(5b\)
CiscoUnified Communications Manager7.1\(5b\)su1
CiscoUnified Communications Manager7.1\(5b\)su1a
CiscoUnified Communications Manager7.1\(5b\)su2
CiscoUnified Communications Manager7.1\(5b\)su3
CiscoUnified Communications Manager8.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-2561?
The SIP process in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 7.x before 7.1(5b)su4 and 8.x before 8.0(1) does not properly handle SDP data within a SIP call in certain situations related to use of the g729ar8 codec for a Media Termination Point (MTP), which allows remote attackers to cause a denial of service (service outage) via a crafted call, aka Bug ID CSCtc61990.
How severe is CVE-2011-2561?
Severity scoring for CVE-2011-2561 is pending analysis. The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.
How do I fix CVE-2011-2561?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-2561?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST