Vulnerability · Published Oct 3, 2023 · Assigned by snyk
CVE-2023-26151
Medium 5.3
In plain English
A medium-severity uncontrolled resource consumption in asyncua. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)1.2%top 32.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Versions of the package asyncua before 0.9.96 are vulnerable to Denial of Service (DoS) such that an attacker can send a malformed packet and as a result, the server will enter into an infinite loop and consume excessive memory.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | asyncua | 0.9.96 | GHSA-gfvq-mxw3-mfq3 |
| PyPI | asyncua | 0.9.96 | PYSEC-2023-190 |
| Ubuntu:22.04:LTS | python-opcua | no fix listed | UBUNTU-CVE-2023-26151 |
Affected products (as reported)
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P
References
- https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673709
- https://gist.github.com/artfire52/1540b234350795e0ecb4d672608dbec8
- https://github.com/FreeOpcUa/opcua-asyncio/issues/1013
- https://github.com/FreeOpcUa/opcua-asyncio/pull/1039
- https://github.com/FreeOpcUa/opcua-asyncio/commit/f6603daa34a93a658f0e176cb0b9ee5a6643b262
- https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96