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Cisco NX-OS Software ICMP Version 6 Memory Leak Denial of Service Vulnerability

cisco-sa-fxos-nxos-icmpv6-dos-YD55jVCq · Medium · Published · Updated

A vulnerability in ICMP Version 6 (ICMPv6) processing in Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a slow system memory leak, which over time could lead to a denial of service (DoS) condition. This vulnerability is due to improper error handling when an IPv6-configured interface receives a specific type of ICMPv6 packet. An attacker could exploit this vulnerability by sending a sustained rate of crafted ICMPv6 packets to a local IPv6 address on a targeted device. A successful exploit could allow the attacker to cause a system memory leak in the ICMPv6 process on the device. As a result, the ICMPv6 process could run out of system memory and stop processing traffic. The device could then drop all ICMPv6 packets, causing traffic instability on the device. Restoring device functionality would require a device reboot. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-nxos-icmpv6-dos-YD55jVCq

Cisco advisory ·CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2021-1229
Cisco Bug IDsCSCvv24541, CSCvv96593, CSCvv96592
CVSS ScoreBase 5.8
Base 5.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:X/RL:X/RC:X
Product Names From Source
Cisco NX-OS Software 6.0(2)A8(1), Cisco NX-OS Software 6.0(2)A8(2), Cisco NX-OS Software 6.0(2)A8(3), Cisco NX-OS Software 6.0(2)A8(4), Cisco NX-OS Software 6.0(2)A8(4a), Cisco NX-OS Software 6.0(2)A8(5), Cisco NX-OS Software 6.0(2)A8(6), Cisco NX-OS Software 6.0(2)A8(7), Cisco NX-OS Software 6.0(2)A8(7a), Cisco NX-OS Software 6.0(2)A8(7b), Cisco NX-OS Software 6.0(2)A8(8), Cisco NX-OS Software 6.0(2)A8(9), Cisco NX-OS Software 6.0(2)A8(10a), Cisco NX-OS Software 6.0(2)A8(10), Cisco NX-OS Software 6.0(2)A8(11), Cisco NX-OS Software 6.0(2)A8(11a), Cisco NX-OS Software 6.0(2)A8(11b), Cisco NX-OS Software 7.0(3)I4(1), Cisco NX-OS Software 7.0(3)I4(2), Cisco NX-OS Software 7.0(3)I4(3), Cisco NX-OS Software 7.0(3)I4(4), Cisco NX-OS Software 7.0(3)I4(5), Cisco NX-OS Software 7.0(3)I4(6), Cisco NX-OS Software 7.0(3)I4(7), Cisco NX-OS Software 7.0(3)I4(8), Cisco NX-OS Software 7.0(3)I4(8a), Cisco NX-OS Software 7.0(3)I4(8b), Cisco NX-OS Software 7.0(3)I4(8z), Cisco NX-OS Software 7.0(3)I4(1t), Cisco NX-OS Software 7.0(3)I4(6t), Cisco NX-OS Software 7.0(3)I4(9), Cisco NX-OS Software 7.0(3)I5(1), Cisco NX-OS Software 7.0(3)I5(2), Cisco NX-OS Software 7.0(3)I5(3), Cisco NX-OS Software 7.0(3)I5(3a), Cisco NX-OS Software 7.0(3)I5(3b), Cisco NX-OS Software 7.3(0)D1(1), Cisco NX-OS Software 7.3(0)DX(1), Cisco NX-OS Software 7.3(0)N1(1), Cisco NX-OS Software 7.3(0)N1(1b), Cisco NX-OS Software 7.3(0)N1(1a), Cisco NX-OS Software 7.3(1)D1(1), Cisco NX-OS Software 7.3(1)N1(1), Cisco NX-OS Software 7.3(2)D1(1), Cisco NX-OS Software 7.3(2)D1(2), Cisco NX-OS Software 7.3(2)D1(3), Cisco NX-OS Software 7.3(2)D1(3a), Cisco NX-OS Software 7.3(2)D1(1d), Cisco NX-OS Software 7.3(2)N1(1), Cisco NX-OS Software 7.3(2)N1(1b), Cisco NX-OS Software 7.3(2)N1(1c), Cisco NX-OS Software 7.3(3)N1(1), Cisco NX-OS Software 8.1(1), Cisco NX-OS Software 8.1(2), Cisco NX-OS Software 8.1(2a), Cisco NX-OS Software 8.2(1), Cisco NX-OS Software 8.2(2), Cisco NX-OS Software 8.2(3), Cisco NX-OS Software 8.2(4), Cisco NX-OS Software 8.2(5), Cisco NX-OS Software 8.2(6), Cisco NX-OS Software 8.3(1), Cisco NX-OS Software 8.3(2), Cisco NX-OS Software 7.3(4)N1(1), Cisco NX-OS Software 7.3(4)N1(1a), Cisco NX-OS Software 7.3(3)D1(1), Cisco NX-OS Software 7.3(4)D1(1), Cisco NX-OS Software 7.3(5)N1(1), Cisco NX-OS Software 8.4(1), Cisco NX-OS Software 8.4(2), Cisco NX-OS Software 7.3(6)N1(1), Cisco NX-OS Software 7.3(6)N1(1a), Cisco NX-OS Software 7.3(5)D1(1), Cisco NX-OS Software 7.3(7)N1(1), Cisco NX-OS Software 7.3(7)N1(1a), Cisco NX-OS Software 7.3(7)N1(1b), Cisco NX-OS Software 7.3(6)D1(1), Cisco NX-OS Software 7.3(8)N1(1), Cisco NX-OS Software 7.3(8)N1(1a), Cisco NX-OS Software 7.3(8)N1(1b), Cisco NX-OS System Software in ACI Mode 13.2(1l), Cisco NX-OS System Software in ACI Mode 13.2(1m), Cisco NX-OS System Software in ACI Mode 13.2(2l), Cisco NX-OS System Software in ACI Mode 13.2(2o), Cisco NX-OS System Software in ACI Mode 13.2(3i), Cisco NX-OS System Software in ACI Mode 13.2(3n), Cisco NX-OS System Software in ACI Mode 13.2(3o), Cisco NX-OS System Software in ACI Mode 13.2(3r), Cisco NX-OS System Software in ACI Mode 13.2(4d), Cisco NX-OS System Software in ACI Mode 13.2(4e), Cisco NX-OS System Software in ACI Mode 13.2(3j), Cisco NX-OS System Software in ACI Mode 13.2(3s), Cisco NX-OS System Software in ACI Mode 13.2(5d), Cisco NX-OS System Software in ACI Mode 13.2(5e), Cisco NX-OS System Software in ACI Mode 13.2(5f), Cisco NX-OS System Software in ACI Mode 13.2(6i), Cisco NX-OS System Software in ACI Mode 13.2(41d), Cisco NX-OS System Software in ACI Mode 13.2(7f), Cisco NX-OS System Software in ACI Mode 13.2(7k), Cisco NX-OS System Software in ACI Mode 13.2(9b), Cisco NX-OS System Software in ACI Mode 13.2(8d), Cisco NX-OS System Software in ACI Mode 13.2(9f), Cisco NX-OS System Software in ACI Mode 13.2(9h), Cisco NX-OS System Software in ACI Mode 14.0(1h), Cisco NX-OS System Software in ACI Mode 14.0(2c), Cisco NX-OS System Software in ACI Mode 14.0(3d), Cisco NX-OS System Software in ACI Mode 14.0(3c), Cisco NX-OS System Software in ACI Mode 14.1(1i), Cisco NX-OS System Software in ACI Mode 14.1(1j), Cisco NX-OS System Software in ACI Mode 14.1(1k), Cisco NX-OS System Software in ACI Mode 14.1(1l), Cisco NX-OS System Software in ACI Mode 14.1(2g), Cisco NX-OS System Software in ACI Mode 14.1(2m), Cisco NX-OS System Software in ACI Mode 14.1(2o), Cisco NX-OS System Software in ACI Mode 14.1(2s), Cisco NX-OS System Software in ACI Mode 14.1(2u), Cisco NX-OS System Software in ACI Mode 14.1(2w), Cisco NX-OS System Software in ACI Mode 14.1(2x), Cisco NX-OS System Software in ACI Mode 14.2(1i), Cisco NX-OS System Software in ACI Mode 14.2(1j), Cisco NX-OS System Software in ACI Mode 14.2(1l), Cisco NX-OS System Software in ACI Mode 14.2(2e), Cisco NX-OS System Software in ACI Mode 14.2(2f), Cisco NX-OS System Software in ACI Mode 14.2(2g), Cisco NX-OS System Software in ACI Mode 14.2(3j), Cisco NX-OS System Software in ACI Mode 14.2(3l), Cisco NX-OS System Software in ACI Mode 14.2(3n), Cisco NX-OS System Software in ACI Mode 14.2(3q), Cisco NX-OS System Software in ACI Mode 14.2(4i), Cisco NX-OS System Software in ACI Mode 14.2(4k), Cisco NX-OS System Software in ACI Mode 14.2(4o), Cisco NX-OS System Software in ACI Mode 14.2(4p), Cisco NX-OS System Software in ACI Mode 14.2(5k), Cisco NX-OS System Software in ACI Mode 14.2(5l), Cisco NX-OS System Software in ACI Mode 14.2(5n), Cisco NX-OS System Software in ACI Mode 15.0(1k), Cisco NX-OS System Software in ACI Mode 15.0(1l), Cisco NX-OS System Software in ACI Mode 15.0(2e), Cisco NX-OS System Software in ACI Mode 15.0(2h), Cisco NX-OS System Software in ACI Mode 15.1(2e), Cisco NX-OS Software, Cisco NX-OS System Software in ACI Mode, Cisco Nexus 7000 Series Switches, Cisco Nexus 5000 Series Switches, Cisco Nexus 3000 Series Switches, Cisco Nexus 6000 Series Switches, Cisco Nexus 9000 Series Switches

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