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Cisco Security Advisory 20141222-ntpd

Cisco Security Advisory 20141222-ntpd
Posted Dec 24, 2014
Authored by Cisco Systems | Site cisco.com

Cisco Security Advisory - Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to execute arbitrary code or create a denial of service (DoS) condition. On December 19, 2014, NTP.org and US-CERT released security advisories detailing two issues regarding weak cryptographic pseudorandom number generation (PRNG), three buffer overflow vulnerabilities, and an unhandled error condition with an unknown impact. Cisco will release free software updates that address these vulnerabilities. Workarounds that mitigate these vulnerabilities are available.

tags | advisory, remote, denial of service, overflow, arbitrary, vulnerability
systems | cisco
advisories | CVE-2014-9293, CVE-2014-9294, CVE-2014-9295, CVE-2014-9296
SHA-256 | 5dbade7a53bf1ca9ac25f9e8c3be3931a5da81f0c75dd71cb6377e3ee36e48ba

Cisco Security Advisory 20141222-ntpd

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Cisco Security Advisory: Multiple Vulnerabilities in ntpd Affecting Cisco Products

Advisory ID: cisco-sa-20141222-ntpd

Revision 1.1

Last Updated 2014 December 23 13:37 UTC (GMT)

For Public Release 2014 December 22 16:00 UTC (GMT)

+---------------------------------------------------------------------

Summary
=======

Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to execute arbitrary code or create a denial of service (DoS) condition.

On December 19, 2014, NTP.org and US-CERT released security advisories detailing two issues regarding weak cryptographic pseudorandom number generation (PRNG), three buffer overflow vulnerabilities, and an unhandled error condition with an unknown impact. The vulnerabilities are referenced in this document as follows:

* CVE-2014-9293: Weak Default Key in config_auth()
* CVE-2014-9294: Noncryptographic Random Number Generator with Weak Seed Used by ntp-keygen to Generate Symmetric Keys
* CVE-2014-9295: Multiple Buffer Overflow Vulnerabilities in ntpd
* CVE-2014-9296: ntpd receive(): Missing Return on Error

This advisory will be updated as additional information becomes available.

Cisco will release free software updates that address these vulnerabilities.

Workarounds that mitigate these vulnerabilities are available.

This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20141222-ntpd

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