critical
9.3
CWE
119
Advisory Published
Updated

CVE-2016-6432: Buffer Overflow

First published: Thu Oct 27 2016(Updated: )

A vulnerability in the Identity Firewall feature of Cisco ASA Software before 9.6(2.1) could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to a buffer overflow in the affected code area. An attacker could exploit this vulnerability by sending a crafted NetBIOS packet in response to a NetBIOS probe sent by the ASA software. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or cause a reload of the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 traffic.

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Adaptive Security Appliance=8.4.0
Cisco Adaptive Security Appliance=8.4.2
Cisco Adaptive Security Appliance=8.4.2.1
Cisco Adaptive Security Appliance=8.4.2.8
Cisco Adaptive Security Appliance=8.4.3
Cisco Adaptive Security Appliance=8.4.3.8
Cisco Adaptive Security Appliance=8.4.3.9
Cisco Adaptive Security Appliance=8.4.4
Cisco Adaptive Security Appliance Software=8.4.4.1
Cisco Adaptive Security Appliance Software=8.4.4.3
Cisco Adaptive Security Appliance Software=8.4.4.5
Cisco Adaptive Security Appliance Software=8.4.4.9
Cisco Adaptive Security Appliance Software=8.4.5
Cisco Adaptive Security Appliance Software=8.4.5.6
Cisco Adaptive Security Appliance Software=8.4.6
Cisco Adaptive Security Appliance Software=8.4.7
Cisco Adaptive Security Appliance Software=8.4.7.3
Cisco Adaptive Security Appliance Software=8.4.7.15
Cisco Adaptive Security Appliance Software=8.4.7.22
Cisco Adaptive Security Appliance Software=8.4.7.23
Cisco Adaptive Security Appliance Software=8.4.7.26
Cisco Adaptive Security Appliance Software=8.4.7.28
Cisco Adaptive Security Appliance Software=8.4.7.29
Cisco Adaptive Security Appliance Software=8.5.1
Cisco Adaptive Security Appliance Software=8.5.1.1
Cisco Adaptive Security Appliance Software=8.5.1.6
Cisco Adaptive Security Appliance Software=8.5.1.7
Cisco Adaptive Security Appliance Software=8.5.1.14
Cisco Adaptive Security Appliance Software=8.5.1.17
Cisco Adaptive Security Appliance Software=8.5.1.18
Cisco Adaptive Security Appliance Software=8.5.1.19
Cisco Adaptive Security Appliance Software=8.5.1.21
Cisco Adaptive Security Appliance Software=8.5.1.24
Cisco Adaptive Security Appliance Software=8.6.1
Cisco Adaptive Security Appliance Software=8.6.1.1
Cisco Adaptive Security Appliance Software=8.6.1.2
Cisco Adaptive Security Appliance Software=8.6.1.5
Cisco Adaptive Security Appliance Software=8.6.1.10
Cisco Adaptive Security Appliance Software=8.6.1.12
Cisco Adaptive Security Appliance Software=8.6.1.13
Cisco Adaptive Security Appliance Software=8.6.1.14
Cisco Adaptive Security Appliance Software=8.6.1.17
Cisco Adaptive Security Appliance Software=8.7.1
Cisco Adaptive Security Appliance Software=8.7.1.1
Cisco Adaptive Security Appliance Software=8.7.1.3
Cisco Adaptive Security Appliance Software=8.7.1.4
Cisco Adaptive Security Appliance Software=8.7.1.7
Cisco Adaptive Security Appliance Software=8.7.1.8
Cisco Adaptive Security Appliance Software=8.7.1.11
Cisco Adaptive Security Appliance Software=8.7.1.13
Cisco Adaptive Security Appliance Software=8.7.1.16
Cisco Adaptive Security Appliance Software=8.7.1.17
Cisco Adaptive Security Appliance Software=9.0.1
Cisco Adaptive Security Appliance Software=9.0.2
Cisco Adaptive Security Appliance Software=9.0.2.10
Cisco Adaptive Security Appliance Software=9.0.3
Cisco Adaptive Security Appliance Software=9.0.3.6
Cisco Adaptive Security Appliance Software=9.0.3.8
Cisco Adaptive Security Appliance Software=9.0.4
Cisco Adaptive Security Appliance Software=9.0.4.1
Cisco Adaptive Security Appliance Software=9.0.4.5
Cisco Adaptive Security Appliance Software=9.0.4.7
Cisco Adaptive Security Appliance Software=9.0.4.17
Cisco Adaptive Security Appliance Software=9.0.4.20
Cisco Adaptive Security Appliance Software=9.0.4.24
Cisco Adaptive Security Appliance Software=9.0.4.26
Cisco Adaptive Security Appliance Software=9.0.4.29
Cisco Adaptive Security Appliance Software=9.0.4.33
Cisco Adaptive Security Appliance Software=9.0.4.35
Cisco Adaptive Security Appliance Software=9.0.4.37
Cisco Adaptive Security Appliance Software=9.1\(7\)4
Cisco Adaptive Security Appliance Software=9.1.1
Cisco Adaptive Security Appliance Software=9.1.1.4
Cisco Adaptive Security Appliance Software=9.1.2
Cisco Adaptive Security Appliance Software=9.1.2.8
Cisco Adaptive Security Appliance Software=9.1.3
Cisco Adaptive Security Appliance Software=9.1.3.2
Cisco Adaptive Security Appliance Software=9.1.4
Cisco Adaptive Security Appliance Software=9.1.4.5
Cisco Adaptive Security Appliance Software=9.1.5
Cisco Adaptive Security Appliance Software=9.1.5.10
Cisco Adaptive Security Appliance Software=9.1.5.12
Cisco Adaptive Security Appliance Software=9.1.5.15
Cisco Adaptive Security Appliance Software=9.1.5.21
Cisco Adaptive Security Appliance Software=9.1.6
Cisco Adaptive Security Appliance Software=9.1.6.1
Cisco Adaptive Security Appliance Software=9.1.6.4
Cisco Adaptive Security Appliance Software=9.1.6.6
Cisco Adaptive Security Appliance Software=9.1.6.8
Cisco Adaptive Security Appliance Software=9.1.6.10
Cisco Adaptive Security Appliance Software=9.2\(0.0\)
Cisco Adaptive Security Appliance Software=9.2\(0.104\)
Cisco Adaptive Security Appliance Software=9.2\(3.1\)
Cisco Adaptive Security Appliance Software=9.2.1
Cisco Adaptive Security Appliance Software=9.2.2
Cisco Adaptive Security Appliance Software=9.2.2.4
Cisco Adaptive Security Appliance Software=9.2.2.7
Cisco Adaptive Security Appliance Software=9.2.2.8
Cisco Adaptive Security Appliance Software=9.2.3
Cisco Adaptive Security Appliance Software=9.2.3.3
Cisco Adaptive Security Appliance Software=9.2.3.4
Cisco Adaptive Security Appliance Software=9.2.4
Cisco Adaptive Security Appliance Software=9.2.4.2
Cisco Adaptive Security Appliance Software=9.2.4.4
Cisco Adaptive Security Appliance Software=9.3\(1.50\)
Cisco Adaptive Security Appliance Software=9.3\(1.105\)
Cisco Adaptive Security Appliance Software=9.3\(2.100\)
Cisco Adaptive Security Appliance Software=9.3\(2.243\)
Cisco Adaptive Security Appliance Software=9.3.1
Cisco Adaptive Security Appliance Software=9.3.1.1
Cisco Adaptive Security Appliance Software=9.3.2
Cisco Adaptive Security Appliance Software=9.3.2.2
Cisco Adaptive Security Appliance Software=9.3.3
Cisco Adaptive Security Appliance Software=9.3.3.1
Cisco Adaptive Security Appliance Software=9.3.3.2
Cisco Adaptive Security Appliance Software=9.3.3.5
Cisco Adaptive Security Appliance Software=9.3.3.6
Cisco Adaptive Security Appliance Software=9.3.5
Cisco Adaptive Security Appliance Software=9.4.0.115
Cisco Adaptive Security Appliance Software=9.4.1
Cisco Adaptive Security Appliance Software=9.4.1.1
Cisco Adaptive Security Appliance Software=9.4.1.2
Cisco Adaptive Security Appliance Software=9.4.1.3
Cisco Adaptive Security Appliance Software=9.4.1.5
Cisco Adaptive Security Appliance Software=9.4.2
Cisco Adaptive Security Appliance Software=9.4.2.3
Cisco Adaptive Security Appliance Software=9.5.1
Cisco Adaptive Security Appliance Software=9.5.2
Cisco Adaptive Security Appliance Software=9.6.0
Cisco Adaptive Security Appliance Software=9.6.1
Cisco Adaptive Security Appliance Software=8.4.0
Cisco Adaptive Security Appliance Software=8.4.2
Cisco Adaptive Security Appliance Software=8.4.2.1
Cisco Adaptive Security Appliance Software=8.4.2.8
Cisco Adaptive Security Appliance Software=8.4.3
Cisco Adaptive Security Appliance Software=8.4.3.8
Cisco Adaptive Security Appliance Software=8.4.3.9
Cisco Adaptive Security Appliance Software=8.4.4

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-6432?

    CVE-2016-6432 has a high severity rating due to its potential for remote code execution.

  • How do I fix CVE-2016-6432?

    To fix CVE-2016-6432, upgrade to Cisco ASA software version 9.6(2.1) or later.

  • What are the potential impacts of CVE-2016-6432?

    The potential impacts of CVE-2016-6432 include system reload or unauthorized code execution.

  • Which Cisco products are affected by CVE-2016-6432?

    CVE-2016-6432 affects multiple versions of Cisco Adaptive Security Appliance software prior to 9.6(2.1).

  • Is CVE-2016-6432 exploitable remotely?

    Yes, CVE-2016-6432 can be exploited by unauthenticated, remote attackers.

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