| Name | CVE-2022-25304 |
| Description | All versions of package opcua; all versions of package asyncua 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1021274 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| python-opcua (PTS) | bullseye | 0.98.11-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| python-opcua | source | (unstable) | (unfixed) | | | 1021274 |
Notes
[bullseye] - python-opcua <no-dsa> (Minor issue)
[buster] - python-opcua <no-dsa> (Minor issue)
https://github.com/FreeOpcUa/python-opcua/issues/1466
https://security.snyk.io/vuln/SNYK-PYTHON-OPCUA-2988730