high
7.5
CWE
399
Advisory Published
Updated

CVE-2016-6455

First published: Thu Nov 03 2016(Updated: )

A vulnerability in the Slowpath of StarOS for Cisco ASR 5500 Series routers with Data Processing Card 2 (DPC2) could allow an unauthenticated, remote attacker to cause a subset of the subscriber sessions to be disconnected, resulting in a partial denial of service (DoS) condition. This vulnerability affects Cisco ASR 5500 devices with Data Processing Card 2 (DPC2) running StarOS 18.0 or later. More Information: CSCvb12081. Known Affected Releases: 18.7.4 19.5.0 20.0.2.64048 20.2.3 21.0.0. Known Fixed Releases: 18.7.4 18.7.4.65030 18.8.M0.65044 19.5.0 19.5.0.65092 19.5.M0.65023 19.5.M0.65050 20.2.3 20.2.3.64982 20.2.3.65017 20.2.a4.65307 20.3.M0.64984 20.3.M0.65029 20.3.M0.65037 20.3.M0.65071 20.3.T0.64985 20.3.T0.65031 20.3.T0.65043 20.3.T0.65067 21.0.0 21.0.0.65256 21.0.M0.64922 21.0.M0.64983 21.0.M0.65140 21.0.V0.65150 21.1.A0.64932 21.1.A0.64987 21.1.A0.65145 21.1.PP0.65270 21.1.R0.65130 21.1.R0.65135 21.1.R0.65154 21.1.VC0.65203 21.2.A0.65147.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco ASR 5000 Series Routers=18.0.0
Cisco ASR 5000 Series Routers=18.0.0.57828
Cisco ASR 5000 Series Routers=18.0.0.59167
Cisco ASR 5000 Series Routers=18.0.0.59211
Cisco ASR 5000 Series Routers=18.0.l0.59219
Cisco ASR 5000 Series Routers=18.1.0
Cisco ASR 5000 Series Routers=18.1.0.59776
Cisco ASR 5000 Series Routers=18.1.0.59780
Cisco ASR 5000 Series Routers=18.1_base
Cisco ASR 5000 Series Routers=18.3.0
Cisco ASR 5000 Series Routers=18.3_base
Cisco ASR 5000 Series Routers=18.4.0
Cisco ASR 5000 Series Routers=19.0.1
Cisco ASR 5000 Series Routers=19.0.m0.60737
Cisco ASR 5000 Series Routers=19.0.m0.60828
Cisco ASR 5000 Series Routers=19.0.m0.61045
Cisco ASR 5000 Series Routers=19.1.0
Cisco ASR 5000 Series Routers=19.1.0.61559
Cisco ASR 5000 Series Routers=19.2.0
Cisco ASR 5000 Series Routers=19.3.0
Cisco ASR 5000 Series Routers=20.0.0
Cisco ASR 5500 firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-6455?

    CVE-2016-6455 has been rated with a severity that can lead to a partial denial of service condition.

  • How do I fix CVE-2016-6455?

    To mitigate CVE-2016-6455, update the Cisco ASR 5500 Series routers software to a patched version.

  • What types of attacks can CVE-2016-6455 enable?

    CVE-2016-6455 can enable unauthenticated remote attackers to disconnect subscriber sessions.

  • Who is affected by CVE-2016-6455?

    CVE-2016-6455 affects various versions of Cisco ASR 5000 Software, specifically from versions 18.0.0 to 19.3.0.

  • What is the impact of CVE-2016-6455?

    The impact of CVE-2016-6455 includes potential network disruption due to partial denial of service.

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