CVE-2017-6603: Medium severity Cisco Asr 900 Series Firmware vulnerability

Published Apr 7, 2017
·
Updated

A vulnerability in Cisco ASR 903 or ASR 920 Series Devices running with an RSP2 card could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on a targeted system because of incorrect IPv6 Packet Processing. More Information: CSCuy94366. Known Affected Releases: 15.4(3)S3.15. Known Fixed Releases: 15.6(2)SP 15.6(1.31)SP.

Affected Software

20 affected components
Cisco Asr 900 Series Firmware=15.4\(3\)s3.15
Cisco Asr-920-12cz-a
Cisco Asr-920-12cz-d
Cisco Asr-920-12sz-im
Cisco Asr-920-24sz-im
Cisco Asr-920-24sz-m
Cisco Asr-920-24tz-m
Cisco Asr-920-4sz-a
Cisco Asr-920-4sz-d
Cisco ASR 903
All of the following
Cisco Asr 900 Series Firmware=15.4\(3\)s3.15
Any of the following
Cisco Asr-920-12cz-a
Cisco Asr-920-12cz-d
Cisco Asr-920-12sz-im
Cisco Asr-920-24sz-im
Cisco Asr-920-24sz-m
Cisco Asr-920-24tz-m
Cisco Asr-920-4sz-a
Cisco Asr-920-4sz-d
Cisco ASR 903

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Cisco ASR 903/ASR 920 Series Devices (RSP2) to a version that resolves this vulnerability.

    Fixed in 15.6(2)SP 15.6(1.31)SPPatch CSCuy94366

Event History

Apr 7, 2017
CVE Published
via MITRE·05:00 PM
Data Sourced
via MITRE·05:00 PM
DescriptionWeakness
Data Sourced
via NVD·05:59 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2017-6603?

CVE-2017-6603 is classified as a high severity vulnerability due to its potential to cause a denial of service (DoS) condition.

2

How do I fix CVE-2017-6603?

To remediate CVE-2017-6603, you should upgrade to a fixed version of the Cisco ASR 900 Series Software that addresses this vulnerability.

3

Which Cisco devices are affected by CVE-2017-6603?

CVE-2017-6603 specifically affects Cisco ASR 903 and ASR 920 Series Devices running with an RSP2 card.

4

What is the impact of CVE-2017-6603?

The impact of CVE-2017-6603 is that an unauthenticated, adjacent attacker could trigger a denial of service condition on the vulnerable system.

5

Is CVE-2017-6603 remote or local access required for exploitation?

CVE-2017-6603 requires adjacent network access by an unauthenticated attacker for exploitation.

Contact

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