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.
problem types: CWE-823: Use of Out-of-range Pointer Offset
affected:
{
vendor: Siemens
product: APOGEE PXC Compact (BACnet)
versions:
version: All versions < V3.5.5, status: affected
defaultStatus: unknown
}
{
vendor: Siemens
product: APOGEE PXC Compact (P2 Ethernet)
versions:
version: All versions < V2.8.20, status: affected
defaultStatus: unknown
}
{
vendor: Siemens
product: APOGEE PXC Modular (BACnet)
versions:
version: All versions < V3.5.5, status: affected
defaultStatus: unknown
}
{
vendor: Siemens
product: APOGEE PXC Modular (P2 Ethernet)
versions:
version: All versions < V2.8.20, status: affected
defaultStatus: unknown
}
{
vendor: Siemens
product: Nucleus NET
versions:
version: All versions < V5.2, status: affected
defaultStatus: unknown
}
{
vendor: Siemens
product: Nucleus Source Code
versions:
version: Versions including affected DNS modules, status: affected
defaultStatus: unknown
}
{
vendor: Siemens
product: TALON TC Compact (BACnet)
versions:
version: All versions < V3.5.5, status: affected
defaultStatus: unknown
}
{
vendor: Siemens
product: TALON TC Modular (BACnet)
versions:
version: All versions < V3.5.5, status: affected
defaultStatus: unknown
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
baseScore: 8.1
baseSeverity: HIGH
]