Overview
- 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), 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.
- Source
- productcert@siemens.com
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.4
- Impact score
- 5.2
- Exploitability score
- 2.2
- Vector string
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5.8
- Impact score
- 4.9
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:P/I:N/A:P
Social media
- Hype score
- Not currently trending
Configurations
[ { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:o:siemens:simotics_connect_400_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F02FDCB9-0149-4EFA-9DBA-045C4AD84EC0", "versionEndExcluding": "0.5.0.0" } ], "operator": "OR" }, { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:h:siemens:simotics_connect_400:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "48BFF9EF-D1C1-4107-8D1E-51315C03FFF0" } ], "operator": "OR" } ], "operator": "AND" }, { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A987CFB-4A41-4F82-8C7F-31DE8F0650DE" }, { "criteria": "cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EC33F30E-EEA1-452E-8EFE-28ADA88E3F56", "versionEndExcluding": "2017.02.3" }, { "criteria": "cpe:2.3:a:siemens:nucleus_readystart_v4:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B35FDE44-BE25-431D-B2EE-195ACC5A606C", "versionEndExcluding": "4.1.0" }, { "criteria": "cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53A38C64-612A-4BC5-83D5-D3FA1C90E0F7" } ], "operator": "OR" } ] } ]