CWE
119
Advisory Published
Updated

CVE-2015-4323: Buffer Overflow

First published: Wed Aug 19 2015(Updated: )

Buffer overflow in Cisco NX-OS on Nexus 1000V devices for VMware vSphere 7.3(0)ZN(0.9); Nexus 3000 devices 6.0(2)U5(1.41), 7.0(3)I2(0.373), and 7.3(0)ZN(0.83); Nexus 4000 devices 4.1(2)E1(1b); Nexus 7000 devices 6.2(14)S1; Nexus 9000 devices 7.3(0)ZN(0.9); and MDS 9000 devices 6.2 (13) and 7.1(0)ZN(91.99) and MDS SAN-OS 7.1(0)ZN(91.99) allows remote attackers to cause a denial of service (device outage) via a crafted ARP packet, related to incorrect MTU validation, aka Bug IDs CSCuv71933, CSCuv61341, CSCuv61321, CSCuu78074, CSCut37060, CSCuv61266, CSCuv61351, CSCuv61358, and CSCuv61366.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco NX-OS=6.2\(14\)s1
Cisco Nexus 7000
Cisco Nexus 7700 series
Cisco NX-OS=6.0\(2\)u5\(1.41\)
Cisco NX-OS=7.0\(3\)i2\(0.373\)
Cisco NX-OS=7.3\(0\)zn\(0.83\)
Cisco Nexus 3016Q Firmware
Cisco Nexus 3048 Firmware
Cisco Nexus 3064 Firmware
Cisco Nexus 31128PQ
Cisco Nexus 3132Q-XL
Cisco Nexus 3164Q Firmware
Cisco Nexus 3172 Firmware
Cisco Nexus 3232C
Cisco Nexus 3264Q Firmware
Cisco Nexus 3524-xl
Cisco Nexus 3548-X/XL Firmware
Cisco NX-OS=7.3\(0\)zn\(0.9\)
Cisco Nexus 93120TX Firmware
Cisco Nexus 93128 Firmware
Cisco Nexus 9332PQ Firmware
Cisco Nexus N9336PQ-X
Cisco Nexus 9372PX-E
Cisco Nexus 9372TX
Cisco Nexus 9396PX Firmware
Cisco Nexus 9396TX Firmware
Cisco Nexus 9504 firmware
Cisco Nexus 9508
Cisco Nexus 9516 firmware
Cisco MDS 9000 NX-OS=6.2\(13\)
Cisco MDS 9000 NX-OS=7.1\(0\)zn\(91.99\)
Cisco Nexus 1000V for Hyper-V
Cisco NX-OS=4.1\(2\)e1\(1b\)
Cisco Nexus 4001i

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Frequently Asked Questions

  • What is the severity of CVE-2015-4323?

    CVE-2015-4323 is rated as high severity due to the potential for remote code execution through a buffer overflow.

  • How do I fix CVE-2015-4323?

    To fix CVE-2015-4323, you should upgrade to the latest version of Cisco NX-OS that addresses this vulnerability.

  • What devices are affected by CVE-2015-4323?

    CVE-2015-4323 affects Cisco NX-OS on various Nexus series devices including Nexus 1000V, 3000, 4000, 7000, and 9000.

  • What versions of Cisco NX-OS are vulnerable in CVE-2015-4323?

    The vulnerable versions include Cisco NX-OS 6.0(2)U5(1.41), 7.0(3)I2(0.373), and 7.3(0)ZN(0.83), among others.

  • Can CVE-2015-4323 be exploited remotely?

    Yes, CVE-2015-4323 can be exploited remotely, allowing attackers to execute arbitrary code on affected devices.

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