{
  "modified": "2025-08-09T19:01:26Z",
  "published": "2013-10-27T00:55:03Z",
  "id": "CVE-2013-4122",
  "details": "Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers to cause a denial of service (thread crash and consumption) via (1) an invalid salt or, when FIPS-140 is enabled, a (2) DES or (3) MD5 encrypted password, which triggers a NULL pointer dereference.",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://security.gentoo.org/glsa/glsa-201309-01.xml"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.debian.org/security/2015/dsa-3368"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.ubuntu.com/usn/USN-2755-1"
    },
    {
      "type": "EVIDENCE",
      "url": "http://git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d"
    },
    {
      "type": "FIX",
      "url": "http://git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2013/07/12/3"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2013/07/12/6"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2013/07/13/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2013/07/15/1"
    },
    {
      "type": "WEB",
      "url": "https://www.linuxquestions.org/questions/slackware-14/%5Bslackware-current%5D-glibc-2-17-shadow-and-other-penumbrae-4175461061/"
    }
  ]
}