Home/CVE/Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). This is a IPNET security vulnerability: TC
CVE

CVE-2019-12255

Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). This is a IPNET security vulnerability: TC

Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). This is a IPNET security vulnerability: TCP Urgent Pointer = 0 that leads to an integer underflow.

CRITICAL · CVSS 9.8 EPSS 0.82215
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

29
windriver vxworks>= 6.5 and < 6.9.4
netapp e-series santricity os controller>= 8.00 and <= 8.40.50.00
sonicwall sonicos>= 5.9.0.0 and <= 5.9.0.7
sonicwall sonicos>= 5.9.1.0. and <= 5.9.1.12
sonicwall sonicos>= 6.2.0.0 and <= 6.2.3.1
sonicwall sonicos>= 6.2.4.0 and <= 6.2.4.3
sonicwall sonicos>= 6.2.5.0 and <= 6.2.5.3
sonicwall sonicos>= 6.2.6.0 and <= 6.2.6.1
⚠

Public Exploits & PoCs

2
dosVxWorks 6.8 - TCP Urgent Pointer = 0 Integer Underflow2019-08-12
pocpacketstormsecurity.com · VxWorks-6.8-Integer-Underflow.htmlpacketstormsecurity.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 NVD09 Aug 2019 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

5
siemens-csafSSA-617233
cisa-csafcisa-csaf-csaf_files-OT-white-2019-icsa-19-211-01
cisa-csafcisa-csaf-csaf_files-OT-white-2019-icsa-19-274-01
cisa-csafcisa-csaf-csaf_files-OT-white-2019-icsma-19-274-01
cisa-csafcisa-csaf-csaf_files-OT-white-2023-icsa-23-320-10
🔗

References & Sources

10
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-189842.pdfThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdfThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdfThird Party Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009Third Party Advisory
https://security.netapp.com/advisory/ntap-20190802-0001/Third Party Advisory
https://support.f5.com/csp/article/K41190253Third Party Advisory
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