CVE-2020-27009
First published: Thu Apr 22 2021(Updated: )
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.
Credit: productcert@siemens.com productcert@siemens.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens Nucleus NET | <5.2 | |
| Siemens Nucleus Source Code |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-27009?
The severity of CVE-2020-27009 is high with a severity value of 8.1.
What is the affected software of CVE-2020-27009?
The affected software of CVE-2020-27009 includes Siemens Nucleus Net versions up to exclusive 5.2 and Siemens Nucleus Source Code.
How can I fix CVE-2020-27009?
To fix CVE-2020-27009, it is recommended to update to the latest version (V3.5.5 for APOGEE PXC Compact (BACnet) and APOGEE PXC Modular (BACnet), V2.8.20 for APOGEE PXC Compact (P2 Ethernet) and APOGEE PXC Modular (P2 Ethernet), and V5.2 for Nucleus NET).
What is the Common Weakness Enumeration (CWE) ID of CVE-2020-27009?
The Common Weakness Enumeration (CWE) ID of CVE-2020-27009 includes CWE-787 and CWE-823.
Where can I find more information about CVE-2020-27009?
You can find more information about CVE-2020-27009 in the Siemens ProductCERT advisory: [link](https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf) and [link](https://cert-portal.siemens.com/productcert/pdf/ssa-185699.pdf).
- agent/weakness
- agent/references
- agent/author
- agent/type
- agent/first-publish-date
- agent/last-modified-date
- collector/nvd-api
- agent/software-canonical-lookup-request
- collector/nvd-index
- agent/severity
- agent/softwarecombine
- agent/tags
- agent/description
- agent/event
- collector/mitre-cve
- source/MITRE
- vendor/siemens
- canonical/siemens nucleus net
- canonical/siemens nucleus source code