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rustsec-2018-0007
Vulnerability from osv_rustsec
Published
2018-10-09 12:00
Modified
2023-06-13 13:10
Summary
Stack overflow when parsing malicious DNS packet
Details

There's a stack overflow leading to a crash when Trust-DNS's parses a malicious DNS packet.

Affected versions of this crate did not properly handle parsing of DNS message compression (RFC1035 section 4.1.4). The parser could be tricked into infinite loop when a compression offset pointed back to the same domain name to be parsed.

This allows an attacker to craft a malicious DNS packet which when consumed with Trust-DNS could cause stack overflow and crash the affected software.

The flaw was corrected by trust-dns-proto 0.4.3 and upcoming 0.5.0 release.


{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "trust-dns-proto",
        "purl": "pkg:cargo/trust-dns-proto"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.4.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2018-20994",
    "GHSA-369h-pjr2-6wrh"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "There\u0027s a stack overflow leading to a crash when Trust-DNS\u0027s parses a\nmalicious DNS packet.\n\nAffected versions of this crate did not properly handle parsing of DNS message\ncompression (RFC1035 section 4.1.4). The parser could be tricked into infinite\nloop when a compression offset pointed back to the same domain name to be\nparsed.\n\nThis allows an attacker to craft a malicious DNS packet which when consumed\nwith Trust-DNS could cause stack overflow and crash the affected software.\n\nThe flaw was corrected by trust-dns-proto 0.4.3 and upcoming 0.5.0 release.",
  "id": "RUSTSEC-2018-0007",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2018-10-09T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/trust-dns-proto"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2018-0007.html"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Stack overflow when parsing malicious DNS packet"
}



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