Memory Corruption Vulnerability in CODESYS GatewayService by 3S-Smart Software Solutions
CVE-2019-5105

7.5HIGH

Key Information:

Vendor

Codesys

Status
3s
Vendor
CVE Published:
26 March 2020

What is CVE-2019-5105?

A critical memory corruption vulnerability exists in the Name Service Client functionality of the CODESYS GatewayService by 3S-Smart Software Solutions. This flaw allows an attacker to exploit the service by sending a specially crafted packet, leading to a large memcpy that can cause an access violation, resulting in the termination of the process. All variants of CODESYS V3, particularly those containing the CmpRouter or CmpRouterEmbedded component, are impacted. Affected devices span various platforms and OS types, highlighting the need for immediate attention to secure these systems.

Affected Version(s)

3S 3S-Smart Software Solutions CODESYS 3.5.15.0

References

https://customers.codesys.com/index.php?eID=dumpFile&t=f&...
x_refsource_MISC
https://talosintelligence.com/vulnerability_reports/TALOS...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.