7.8
CWE
399
Advisory Published
Updated

CVE-2015-4291

First published: Sat Aug 01 2015(Updated: )

Cisco IOS XE 2.x before 2.4.3 and 2.5.x before 2.5.1 on ASR 1000 devices allows remote attackers to cause a denial of service (Embedded Services Processor crash) via a crafted series of fragmented (1) IPv4 or (2) IPv6 packets, aka Bug ID CSCtd72617.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS XE Web UI=2.1.0
Cisco IOS XE Web UI=2.1.1
Cisco IOS XE Web UI=2.1.2
Cisco IOS XE Web UI=2.2.1
Cisco IOS XE Web UI=2.2.2
Cisco IOS XE Web UI=2.2.3
Cisco IOS XE Web UI=2.3.0
Cisco IOS XE Web UI=2.3.0t
Cisco IOS XE Web UI=2.3.1t
Cisco IOS XE Web UI=2.3.2
Cisco IOS XE Web UI=2.4.0
Cisco IOS XE Web UI=2.4.1
Cisco IOS XE Web UI=2.5.0

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Frequently Asked Questions

  • What is the severity of CVE-2015-4291?

    CVE-2015-4291 has a medium severity rating as it allows remote attackers to cause a denial of service.

  • How do I fix CVE-2015-4291?

    To fix CVE-2015-4291, you should upgrade your Cisco IOS XE software to version 2.4.3 or later for 2.x versions and 2.5.1 or later for 2.5.x versions.

  • What devices are affected by CVE-2015-4291?

    CVE-2015-4291 affects ASR 1000 devices running vulnerable versions of Cisco IOS XE.

  • Can CVE-2015-4291 be exploited remotely?

    Yes, CVE-2015-4291 can be exploited remotely using crafted fragmented IPv4 or IPv6 packets.

  • What are the consequences of CVE-2015-4291 exploitation?

    Exploitation of CVE-2015-4291 can lead to the crash of the Embedded Services Processor, causing denial of service.

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