{
  "modified": "2025-08-09T19:01:28Z",
  "published": "2012-02-10T19:55:02Z",
  "id": "CVE-2012-0840",
  "details": "tables/apr_hash.c in the Apache Portable Runtime (APR) library through 1.4.5 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://secunia.com/advisories/47862"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:019"
    },
    {
      "type": "FIX",
      "url": "http://svn.apache.org/viewvc?rev=1231605\u0026view=rev"
    },
    {
      "type": "WEB",
      "url": "http://mail-archives.apache.org/mod_mbox/apr-commits/201201.mbox/%3C20120115003715.071D423888FD%40eris.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "http://openwall.com/lists/oss-security/2012/02/08/3"
    },
    {
      "type": "WEB",
      "url": "http://openwall.com/lists/oss-security/2012/02/09/1"
    },
    {
      "type": "WEB",
      "url": "http://www.mail-archive.com/dev%40apr.apache.org/msg24439.html"
    },
    {
      "type": "WEB",
      "url": "http://www.mail-archive.com/dev%40apr.apache.org/msg24472.html"
    },
    {
      "type": "WEB",
      "url": "http://www.mail-archive.com/dev%40apr.apache.org/msg24473.html"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/73096"
    }
  ]
}