A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions <

Summary

A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS domain name record decompression functionality does not properly validate the pointer offset values. The parsing of malformed responses could result in a read access past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition.

Timeline

1. Apr 22, 2021, 8:42 PM UTCCVE published
2. Aug 4, 2024, 4:18 PM UTCRecord last updated

Affected versions

• Siemens APOGEE PXC Compact (BACnet)

  All versions < V3.5.5

• Siemens APOGEE PXC Compact (P2 Ethernet)

  All versions < V2.8.20

• Siemens APOGEE PXC Modular (BACnet)

  All versions < V3.5.5

• Siemens APOGEE PXC Modular (P2 Ethernet)

  All versions < V2.8.20

• Siemens Nucleus NET

  All versions

• Siemens Nucleus ReadyStart V3

  All versions < V2017.02.3

• Siemens Nucleus ReadyStart V4

  All versions < V4.1.0

• Siemens Nucleus Source Code

  Version range not reported

• Siemens SIMOTICS CONNECT 400

  All versions < V0.5.0.0

• Siemens TALON TC Compact (BACnet)

  All versions < V3.5.5

• Siemens TALON TC Modular (BACnet)

  All versions < V3.5.5

References 3