{
  "schema_version": "1.4.0",
  "id": "GHSA-h3qw-gcpw-f6mg",
  "modified": "2022-05-13T01:07:24Z",
  "published": "2022-05-13T01:07:24Z",
  "aliases": [
    "CVE-2013-4206"
  ],
  "details": "Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.",
  "severity": [],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4206"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/54379"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/54533"
    },
    {
      "type": "WEB",
      "url": "http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977"
    },
    {
      "type": "WEB",
      "url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2013/dsa-2736"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2013/08/06/11"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "severity": "MODERATE",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2013-08-19T23:55:00Z"
  }
}