Vulnerability-Lookup

UBUNTU-CVE-2022-39243 (CVE-2022-39243)

Vulnerability from osv_ubuntu – Published: 2022-09-26 14:15 – Updated: 2026-05-20 14:56 – Source website

Details

NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.

Severity

8.4 (High)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.8 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2022-39243	REPORT
	https://github.com/brettwooldridge/NuProcess/comm…	REPORT
	https://github.com/brettwooldridge/NuProcess/secu…	REPORT
	https://github.com/brettwooldridge/NuProcess/pull/143	REPORT
	https://www.cve.org/CVERecord?id=CVE-2022-39243	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-pywatchman",
            "binary_version": "4.9.0-3build1"
          },
          {
            "binary_name": "watchman",
            "binary_version": "4.9.0-3build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "watchman",
        "purl": "pkg:deb/ubuntu/watchman@4.9.0-3build1?arch=source\u0026distro=focal"
      },
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          "type": "ECOSYSTEM"
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      "versions": [
        "4.9.0-2",
        "4.9.0-3",
        "4.9.0-3build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-pywatchman",
            "binary_version": "4.9.0-6build2"
          },
          {
            "binary_name": "watchman",
            "binary_version": "4.9.0-6build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "watchman",
        "purl": "pkg:deb/ubuntu/watchman@4.9.0-6build2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.9.0-5build1",
        "4.9.0-5build2",
        "4.9.0-6",
        "4.9.0-6build1",
        "4.9.0-6build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-pywatchman",
            "binary_version": "4.9.0-7build4"
          },
          {
            "binary_name": "watchman",
            "binary_version": "4.9.0-7build4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "watchman",
        "purl": "pkg:deb/ubuntu/watchman@4.9.0-7build4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.9.0-7build1",
        "4.9.0-7build2",
        "4.9.0-7build3",
        "4.9.0-7build4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-pywatchman",
            "binary_version": "4.9.0-9"
          },
          {
            "binary_name": "watchman",
            "binary_version": "4.9.0-9"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "watchman",
        "purl": "pkg:deb/ubuntu/watchman@4.9.0-9?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.9.0-8build1",
        "4.9.0-9"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-pywatchman",
            "binary_version": "4.9.0-9build3"
          },
          {
            "binary_name": "watchman",
            "binary_version": "4.9.0-9build3"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "watchman",
        "purl": "pkg:deb/ubuntu/watchman@4.9.0-9build3?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.9.0-9",
        "4.9.0-9build1",
        "4.9.0-9build2",
        "4.9.0-9build3"
      ]
    }
  ],
  "aliases": [],
  "details": "NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM\u0027s Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java\u0027s ProcessBuilder isn\u0027t vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.",
  "id": "UBUNTU-CVE-2022-39243",
  "modified": "2026-05-20T14:56:09Z",
  "published": "2022-09-26T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-39243"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756363a9709f868"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/brettwooldridge/NuProcess/security/advisories/GHSA-cxgf-v2p8-7ph7"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/brettwooldridge/NuProcess/pull/143"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-39243"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-39243"
  ]
}

CVE-2022-39243 (GCVE-0-2022-39243)

Vulnerability from cvelistv5 – Published: 2022-09-26 13:25 – Updated: 2025-04-22 17:20

Title

NuProcess vulnerable to command-line injection through insertion of NUL character(s)

Summary

Severity

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-22 15:41 UTC

CWE

CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/brettwooldridge/NuProcess/secu…	x_refsource_CONFIRM
https://github.com/brettwooldridge/NuProcess/pull/143	x_refsource_MISC
https://github.com/brettwooldridge/NuProcess/comm…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
brettwooldridge	NuProcess	Affected: >= 1.2.0, < 2.0.5

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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UBUNTU-CVE-2022-39243 (CVE-2022-39243)

CVE-2022-39243 (GCVE-0-2022-39243)

Tags

Sightings

Nomenclature

Related by attack behaviour