Executive Summary

Title Multiple Cisco Products libSRTP Denial of Service Vulnerability
Name cisco-sa-20160420-libsrtp First vendor Publication 2016-04-20
Vendor Cisco Last vendor Modification 2016-04-20
Severity (Vendor) N/A Revision 1.0

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Cisco released version 1.5.3 of the Secure Real-Time Transport Protocol (SRTP) library (libSRTP), which addresses a denial of service (DoS) vulnerability. Multiple Cisco products incorporate a vulnerable version of the libSRTP library.

The vulnerability is in the encryption processing subsystem of libSRTP and could allow an unauthenticated, remote attacker to trigger a DoS condition. The vulnerability is due to improper input validation of certain fields of SRTP packets. An attacker could exploit this vulnerability by sending a crafted SRTP packet designed to trigger the issue to an affected device.

The impact of this vulnerability on Cisco products may vary depending on the affected product. Details about the impact on each product are outlined in the "Conditions" section of each Cisco bug for this vulnerability. The bug IDs are listed at the top of this advisory and in the table in "Vulnerable Products."

This advisory is available at the following link:


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Original Source

Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...)

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

Application 13
Application 10
Application 1
Application 63
Application 1
Os 161
Os 1
Os 20
Os 1
Os 2
Os 1
Os 2
Os 17
Os 7

Nessus® Vulnerability Scanner

Date Description
2016-09-09 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-1063.nasl - Type : ACT_GATHER_INFO
2016-06-22 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20160420-libsrtp-asa.nasl - Type : ACT_GATHER_INFO
2016-06-22 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20160420-libsrtp-iosxe.nasl - Type : ACT_GATHER_INFO
2016-04-05 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3539.nasl - Type : ACT_GATHER_INFO
2016-02-22 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_6171eb07d8a911e5b2bd002590263bf5.nasl - Type : ACT_GATHER_INFO
2016-01-19 Name : The remote Debian host is missing a security update.
File : debian_DLA-393.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2016-06-23 13:29:26
  • Multiple Updates
2016-04-22 17:26:52
  • Multiple Updates
2016-04-20 21:25:46
  • First insertion