Denial of Service (DoS)
CVE-2022-25761

7.5HIGH

Key Information:

Vendor

Open62541

Status
Open62541/open62541
Vendor
CVE Published:
23 August 2022

What is CVE-2022-25761?

The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.

Affected Version(s)

open62541/open62541 < 1.2.5

open62541/open62541 1.3-rc1

open62541/open62541 < 1.3.1

References

https://security.snyk.io/vuln/SNYK-UNMANAGED-OPEN62541OPE...
https://github.com/open62541/open62541/commit/b79db1ac781...
https://github.com/open62541/open62541/pull/5173

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

Credit

Vera Mens
Uri Katz
Sharon Brizinov of Team82 (Claroty Research)
.