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OpenAdvisories
High · 8.1 CVE-2020-27009 EUVD-2020-19533GHSA-wfpc-6x9w-jf83

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

Published Apr 22, 2021 · Updated Aug 4, 2024 · Assigned by siemens

Description

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 < V5.2), Nucleus Source Code (Versions including affected DNS modules), 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 write past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to execute code in the context of the current process or cause a denial-of-service condition.

Affected products

VendorProductAffectedFixed
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 < V5.2 —
Siemens Nucleus Source Code Versions including affected DNS modules —
Siemens TALON TC Compact (BACnet) All versions < V3.5.5 —
Siemens TALON TC Modular (BACnet) All versions < V3.5.5 —

Advisories 5

References