{
  "cveId": "CVE-2017-15705",
  "url": "https://patchblox.com/security/cve/CVE-2017-15705",
  "summary": "CVE-2017-15705 is fixed in 3 products on 1 platform, first by sa-compile 3.4.2-0ubuntu0.18.04.1, released September 16, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "sa-compile: A denial of service vulnerability was identified that exists in Apache SpamAssassin before 3.4.2",
  "description": "A denial of service vulnerability was identified that exists in Apache SpamAssassin before 3.4.2. The vulnerability arises with certain unclosed tags in emails that cause markup to be handled incorrectly leading to scan timeouts. In Apache SpamAssassin, using HTML::Parser, we setup an object and hook into the begin and end tag event handlers In both cases, the \u0022open\u0022 event is immediately followed by a \u0022close\u0022 event - even if the tag *does not* close in the HTML being parsed. Because of this, we are missing the \u0022text\u0022 event to deal with the object normally. This can cause carefully crafted emails that might take more scan time than expected leading to a Denial of Service. The issue is possibly a bug or design decision in HTML::Parser that specifically impacts the way Apache SpamAssassin uses the module with poorly formed html. The exploit has been seen in the wild but not believed to have been purposefully part of a Denial of Service attempt. We are concerned that there may be attempts to abuse the vulnerability in the future.",
  "published": "2018-09-16T17:00:00Z",
  "severity": "Medium",
  "epss": 0.07879,
  "epssPercentile": 0.9473,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "sa-compile",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.4.2-0ubuntu0.18.04.1",
      "fix": "sa-compile 3.4.2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-sa-compile-3.4.2-0ubuntu0.18.04.1",
      "released": "2018-09-16T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "spamassassin",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.4.2-0ubuntu0.18.04.1",
      "fix": "spamassassin 3.4.2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-spamassassin-3.4.2-0ubuntu0.18.04.1",
      "released": "2018-09-16T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "spamc",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.4.2-0ubuntu0.18.04.1",
      "fix": "spamc 3.4.2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-spamc-3.4.2-0ubuntu0.18.04.1",
      "released": "2018-09-16T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T06:34:28Z"
}