ubuntu-cve-2025-49091
Vulnerability from osv_ubuntu
Published
2025-06-11 01:15
Modified
2026-05-20 15:22
Summary
Details

KDE Konsole before 25.04.2 allows remote code execution in a certain scenario. It supports loading URLs from the scheme handlers such as a ssh:// or telnet:// or rlogin:// URL. This can be executed regardless of whether the ssh, telnet, or rlogin binary is available. In this mode, there is a code path where if that binary is not available, Konsole falls back to using /bin/bash for the given arguments (i.e., the URL) provided. This allows an attacker to execute arbitrary code.

Severity
8.2 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "konsole",
            "binary_version": "4:15.12.3-0ubuntu1"
          },
          {
            "binary_name": "konsole-kpart",
            "binary_version": "4:15.12.3-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "konsole",
        "purl": "pkg:deb/ubuntu/konsole@4:15.12.3-0ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:15.08.2-0ubuntu2",
        "4:15.12.1-1ubuntu1",
        "4:15.12.3-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "konsole",
            "binary_version": "4:17.12.3-1ubuntu1"
          },
          {
            "binary_name": "konsole-kpart",
            "binary_version": "4:17.12.3-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "konsole",
        "purl": "pkg:deb/ubuntu/konsole@4:17.12.3-1ubuntu1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:17.04.3-0ubuntu1",
        "4:17.08.3-0ubuntu1",
        "4:17.12.2-0ubuntu1",
        "4:17.12.3-0ubuntu1",
        "4:17.12.3-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "konsole",
            "binary_version": "4:19.12.3-0ubuntu1"
          },
          {
            "binary_name": "konsole-kpart",
            "binary_version": "4:19.12.3-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "konsole",
        "purl": "pkg:deb/ubuntu/konsole@4:19.12.3-0ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:19.04.3-0ubuntu1",
        "4:19.08.2-0ubuntu1",
        "4:19.08.3-0ubuntu1",
        "4:19.12.0-0ubuntu1",
        "4:19.12.1-0ubuntu1",
        "4:19.12.2-0ubuntu1",
        "4:19.12.3-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "konsole",
            "binary_version": "4:21.12.3-0ubuntu1"
          },
          {
            "binary_name": "konsole-kpart",
            "binary_version": "4:21.12.3-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "konsole",
        "purl": "pkg:deb/ubuntu/konsole@4:21.12.3-0ubuntu1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:21.08.1-1ubuntu1",
        "4:21.08.2-1",
        "4:21.08.3-0ubuntu1",
        "4:21.11.80-0ubuntu1",
        "4:21.11.90-0ubuntu2",
        "4:21.12.0-0ubuntu1",
        "4:21.12.0-0ubuntu2",
        "4:21.12.1-0ubuntu1",
        "4:21.12.2-0ubuntu1",
        "4:21.12.3-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "konsole",
            "binary_version": "4:23.08.5-0ubuntu4"
          },
          {
            "binary_name": "konsole-kpart",
            "binary_version": "4:23.08.5-0ubuntu4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "konsole",
        "purl": "pkg:deb/ubuntu/konsole@4:23.08.5-0ubuntu4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:23.08.1-0ubuntu1",
        "4:23.08.2-0ubuntu1",
        "4:23.08.3-0ubuntu1",
        "4:23.08.4-0ubuntu1",
        "4:23.08.4-0ubuntu2",
        "4:23.08.5-0ubuntu1",
        "4:23.08.5-0ubuntu2",
        "4:23.08.5-0ubuntu3",
        "4:23.08.5-0ubuntu4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "konsole",
            "binary_version": "4:25.08.1-0ubuntu1"
          },
          {
            "binary_name": "konsole-kpart",
            "binary_version": "4:25.08.1-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "konsole",
        "purl": "pkg:deb/ubuntu/konsole@4:25.08.1-0ubuntu1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:24.12.3-0ubuntu1",
        "4:25.04.0-0ubuntu1",
        "4:25.04.1-0ubuntu1",
        "4:25.04.2-0ubuntu1",
        "4:25.04.2-1ubuntu1",
        "4:25.04.3-0ubuntu1",
        "4:25.07.80-0ubuntu1",
        "4:25.07.90-0ubuntu1",
        "4:25.08.0-0ubuntu1",
        "4:25.08.1-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "konsole",
            "binary_version": "4:25.12.3-0ubuntu1"
          },
          {
            "binary_name": "konsole-kpart",
            "binary_version": "4:25.12.3-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "konsole",
        "purl": "pkg:deb/ubuntu/konsole@4:25.12.3-0ubuntu1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:25.08.1-0ubuntu1",
        "4:25.08.2-0ubuntu1",
        "4:25.08.3-0ubuntu1",
        "4:25.11.80-0ubuntu1",
        "4:25.11.90-0ubuntu1",
        "4:25.11.90-0ubuntu2",
        "4:25.12.0-0ubuntu1",
        "4:25.12.1-0ubuntu1",
        "4:25.12.1-1ubuntu1",
        "4:25.12.1-1ubuntu2",
        "4:25.12.1-1ubuntu3",
        "4:25.12.2-0ubuntu1",
        "4:25.12.3-0ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "KDE Konsole before 25.04.2 allows remote code execution in a certain scenario. It supports loading URLs from the scheme handlers such as a ssh:// or telnet:// or rlogin:// URL. This can be executed regardless of whether the ssh, telnet, or rlogin binary is available. In this mode, there is a code path where if that binary is not available, Konsole falls back to using /bin/bash for the given arguments (i.e., the URL) provided. This allows an attacker to execute arbitrary code.",
  "id": "UBUNTU-CVE-2025-49091",
  "modified": "2026-05-20T15:22:53Z",
  "published": "2025-06-11T01:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-49091"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-49091"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2025/06/10/5"
    },
    {
      "type": "REPORT",
      "url": "https://kde.org/info/security/advisory-20250609-1.txt"
    },
    {
      "type": "REPORT",
      "url": "https://invent.kde.org/utilities/konsole/-/commit/09d20dea109050b4c02fb73095f327b5642a2b75"
    },
    {
      "type": "REPORT",
      "url": "https://invent.kde.org/utilities/konsole/-/tags"
    },
    {
      "type": "REPORT",
      "url": "https://konsole.kde.org/changelog.html"
    },
    {
      "type": "REPORT",
      "url": "https://proofnet.de/publikationen/konsole_rce.html"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-49091"
  ]
}



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