ubuntu-cve-2026-25061
Vulnerability from osv_ubuntu
Published
2026-01-29 22:15
Modified
2026-05-20 15:26
Summary
Details

tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past tim.bitmap[251]. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in handle_beacon() and related handlers. As of time of publication, no known patches are available.

Severity
5.5 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tcpflow",
            "binary_version": "1.4.4+repack1-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "tcpflow",
        "purl": "pkg:deb/ubuntu/tcpflow@1.4.4+repack1-2ubuntu0.1~esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.0+dfsg-2",
        "1.4.3+repack1-1",
        "1.4.4+repack1-1",
        "1.4.4+repack1-2",
        "1.4.4+repack1-2ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tcpflow",
            "binary_version": "1.4.5+repack1-1ubuntu0.1"
          },
          {
            "binary_name": "tcpflow-nox",
            "binary_version": "1.4.5+repack1-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "tcpflow",
        "purl": "pkg:deb/ubuntu/tcpflow@1.4.5+repack1-1ubuntu0.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.4+repack1-3",
        "1.4.5+repack1-1",
        "1.4.5+repack1-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tcpflow",
            "binary_version": "1.4.5+repack1-4ubuntu0.18.04.1"
          },
          {
            "binary_name": "tcpflow-nox",
            "binary_version": "1.4.5+repack1-4ubuntu0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "tcpflow",
        "purl": "pkg:deb/ubuntu/tcpflow@1.4.5+repack1-4ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.5+repack1-4",
        "1.4.5+repack1-4build1",
        "1.4.5+repack1-4build2",
        "1.4.5+repack1-4ubuntu0.18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tcpflow",
            "binary_version": "1.5.2+repack1-1build2"
          },
          {
            "binary_name": "tcpflow-nox",
            "binary_version": "1.5.2+repack1-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "tcpflow",
        "purl": "pkg:deb/ubuntu/tcpflow@1.5.2+repack1-1build2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.2+repack1-1build1",
        "1.5.2+repack1-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tcpflow",
            "binary_version": "1.6.1-2build1"
          },
          {
            "binary_name": "tcpflow-nox",
            "binary_version": "1.6.1-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "tcpflow",
        "purl": "pkg:deb/ubuntu/tcpflow@1.6.1-2build1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.1-1",
        "1.6.1-2",
        "1.6.1-2build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tcpflow",
            "binary_version": "1.6.1-3build2"
          },
          {
            "binary_name": "tcpflow-nox",
            "binary_version": "1.6.1-3build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "tcpflow",
        "purl": "pkg:deb/ubuntu/tcpflow@1.6.1-3build2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.1-3",
        "1.6.1-3build1",
        "1.6.1-3build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tcpflow",
            "binary_version": "1.6.1-3build2"
          },
          {
            "binary_name": "tcpflow-nox",
            "binary_version": "1.6.1-3build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "tcpflow",
        "purl": "pkg:deb/ubuntu/tcpflow@1.6.1-3build2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.1-3build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tcpflow",
            "binary_version": "1.6.1-3build3"
          },
          {
            "binary_name": "tcpflow-nox",
            "binary_version": "1.6.1-3build3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "tcpflow",
        "purl": "pkg:deb/ubuntu/tcpflow@1.6.1-3build3?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.1-3build2",
        "1.6.1-3build3"
      ]
    }
  ],
  "aliases": [],
  "details": "tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.",
  "id": "UBUNTU-CVE-2026-25061",
  "modified": "2026-05-20T15:26:05Z",
  "published": "2026-01-29T22:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-25061"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-25061"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/simsong/tcpflow/security/advisories/GHSA-q5q6-frrv-9rj6"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-25061"
  ]
}



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