CVE-2022-21716

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-21716
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-21716.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-21716
Aliases
Downstream
Related
Published
2022-03-03T00:00:00Z
Modified
2025-11-28T03:19:56.857744Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Buffer Overflow in Twisted
Details

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer's SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as nc -rv localhost 22 < /dev/zero. A patch is available in version 22.2.0. There are currently no known workarounds.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-120"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21716.json"
}
References

Affected packages

Git / github.com/twisted/twisted

Affected ranges

Type
GIT
Repo
https://github.com/twisted/twisted
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
89c395ee794e85a9657b112c4351417850330ef9

Affected versions

Other

before-black

twisted-16.*

twisted-16.2.0
twisted-16.3.0
twisted-16.4.0
twisted-16.4.1
twisted-16.5.0
twisted-16.6.0

twisted-17.*

twisted-17.1.0
twisted-17.5.0
twisted-17.9.0

twisted-18.*

twisted-18.4.0
twisted-18.7.0
twisted-18.9.0

twisted-19.*

twisted-19.2.0
twisted-19.7.0

twisted-20.*

twisted-20.11.0.dev6

twisted-21.*

twisted-21.2.0
twisted-21.2.0rc1
twisted-21.7.0
twisted-21.7.0rc1
twisted-21.7.0rc2
twisted-21.7.0rc3

twisted-22.*

twisted-22.1.0
twisted-22.1.0rc1
twisted-22.2.0rc1