fkie_cve-2025-62518
Vulnerability from fkie_nvd
Published
2025-10-21 17:15
Modified
2025-10-21 19:31
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Summary
astral-tokio-tar is a tar archive reading/writing library for async Rust. Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsistent PAX/ustar header handling. When processing archives with PAX-extended headers containing size overrides, the parser incorrectly advances stream position based on ustar header size (often zero) instead of the PAX-specified size, causing it to interpret file content as legitimate tar headers. This issue has been patched in version 0.5.6. There are no workarounds.
References
security-advisories@github.comhttps://edera.dev/stories/tarmageddon
security-advisories@github.comhttps://github.com/astral-sh/tokio-tar/commit/22b3f884adb7a2adf1d3a8d03469533f5cbc8318
security-advisories@github.comhttps://github.com/astral-sh/tokio-tar/security/advisories/GHSA-j5gw-2vrg-8fgx
security-advisories@github.comhttps://github.com/astral-sh/uv/security/advisories/GHSA-w476-p2h3-79g9
security-advisories@github.comhttps://github.com/edera-dev/cve-tarmageddon
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "astral-tokio-tar is a tar archive reading/writing library for async Rust. Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsistent PAX/ustar header handling. When processing archives with PAX-extended headers containing size overrides, the parser incorrectly advances stream position based on ustar header size (often zero) instead of the PAX-specified size, causing it to interpret file content as legitimate tar headers. This issue has been patched in version 0.5.6. There are no workarounds."
    }
  ],
  "id": "CVE-2025-62518",
  "lastModified": "2025-10-21T19:31:25.450",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-10-21T17:15:40.563",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://edera.dev/stories/tarmageddon"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/astral-sh/tokio-tar/commit/22b3f884adb7a2adf1d3a8d03469533f5cbc8318"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/astral-sh/tokio-tar/security/advisories/GHSA-j5gw-2vrg-8fgx"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/astral-sh/uv/security/advisories/GHSA-w476-p2h3-79g9"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/edera-dev/cve-tarmageddon"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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