ubuntu-cve-2025-34458
Vulnerability from osv_ubuntu
Published
2025-12-22 22:16
Modified
2026-05-20 15:17
Summary
Details

wb2osz/direwolf (Dire Wolf) versions up to and including 1.8, prior to commit 3658a87, contain a reachable assertion vulnerability in the APRS MIC-E decoder function aprs_mic_e() located in src/decode_aprs.c. When processing a specially crafted AX.25 frame containing a MIC-E message with an empty or truncated comment field, the application triggers an unhandled assertion checking for a non-empty comment. This assertion failure causes immediate process termination, allowing a remote, unauthenticated attacker to cause a denial of service by sending malformed APRS traffic.

Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "direwolf",
            "binary_version": "1.2-2build1"
          },
          {
            "binary_name": "direwolf-docs",
            "binary_version": "1.2-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "direwolf",
        "purl": "pkg:deb/ubuntu/direwolf@1.2-2build1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2-1",
        "1.2-2",
        "1.2-2build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "direwolf",
            "binary_version": "1.4+dfsg-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "direwolf",
        "purl": "pkg:deb/ubuntu/direwolf@1.4+dfsg-1build1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3-2",
        "1.4+dfsg-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "direwolf",
            "binary_version": "1.5+dfsg-4build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "direwolf",
        "purl": "pkg:deb/ubuntu/direwolf@1.5+dfsg-4build2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5+dfsg-2",
        "1.5+dfsg-3",
        "1.5+dfsg-4",
        "1.5+dfsg-4build1",
        "1.5+dfsg-4build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "direwolf",
            "binary_version": "1.6+dfsg-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "direwolf",
        "purl": "pkg:deb/ubuntu/direwolf@1.6+dfsg-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6+dfsg-1build2",
        "1.6+dfsg-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "direwolf",
            "binary_version": "1.7+dfsg-2build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "direwolf",
        "purl": "pkg:deb/ubuntu/direwolf@1.7+dfsg-2build2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6+dfsg-4build1",
        "1.7+dfsg-1",
        "1.7+dfsg-2",
        "1.7+dfsg-2build1",
        "1.7+dfsg-2build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "direwolf",
            "binary_version": "1.7+dfsg-2build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "direwolf",
        "purl": "pkg:deb/ubuntu/direwolf@1.7+dfsg-2build2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7+dfsg-2build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "direwolf",
            "binary_version": "1.8.1+dfsg-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "direwolf",
        "purl": "pkg:deb/ubuntu/direwolf@1.8.1+dfsg-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7+dfsg-2build2",
        "1.8~beta1+dfsg-1",
        "1.8.1+dfsg-2"
      ]
    }
  ],
  "aliases": [],
  "details": "wb2osz/direwolf (Dire Wolf) versions up to and including 1.8, prior to commit 3658a87, contain a reachable assertion vulnerability in the APRS MIC-E decoder function aprs_mic_e() located in src/decode_aprs.c. When processing a specially crafted AX.25 frame containing a MIC-E message with an empty or truncated comment field, the application triggers an unhandled assertion checking for a non-empty comment. This assertion failure causes immediate process termination, allowing a remote, unauthenticated attacker to cause a denial of service by sending malformed APRS traffic.",
  "id": "UBUNTU-CVE-2025-34458",
  "modified": "2026-05-20T15:17:33Z",
  "published": "2025-12-22T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-34458"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-34458"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-010-direwolf-stack-buffer-overflow-kiss-frame.md"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/wb2osz/direwolf/commit/3658a87"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/wb2osz/direwolf/issues/618"
    },
    {
      "type": "REPORT",
      "url": "https://www.vulncheck.com/advisories/wb2osz-direwolf-reachable-assertion-dos"
    }
  ],
  "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:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-34458"
  ]
}



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