Home/CVE/A DNS client stack-based buffer overflow in ipdnsc_decode_name() affects Wind River VxWorks 6.5 through 7. NOTE: This vu
CVE

CVE-2016-20009

A DNS client stack-based buffer overflow in ipdnsc_decode_name() affects Wind River VxWorks 6.5 through 7. NOTE: This vu

A DNS client stack-based buffer overflow in ipdnsc_decode_name() affects Wind River VxWorks 6.5 through 7. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

CRITICAL · CVSS 9.8 EPSS 0.00416
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-787Out-of-bounds Write
▤

Affected Products & Versions

8
windriver vxworks>= 6.5 and <= 7.0
siemens sgt-100 firmwareall versions
siemens sgt-200 firmwareall versions
siemens sgt-300 firmwareall versions
siemens sgt-400 firmwareall versions
siemens sgt-a20 firmwareall versions
siemens sgt-a35 firmwareall versions
siemens sgt-a65 firmwareall versions
⚠

Public Exploits & PoCs

1
pocblog.exodusintel.com · vxworks-execute-my-packetsblog.exodusintel.com
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Mar 2021 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

2
siemens-csafSSA-553445
cisa-csafcisa-csaf-csaf_files-OT-white-2021-icsa-21-222-06
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert-portal.siemens.com/productcert/pdf/ssa-553445.pdfThird Party Advisory
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