{
  "cveId": "CVE-2018-20533",
  "url": "https://patchblox.com/security/cve/CVE-2018-20533",
  "summary": "CVE-2018-20533 is fixed in 6 products on 1 platform, first by libsolv-perl 0.6.30-1ubuntu0.1~esm1, released December 27, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libsolv0: There is a NULL pointer dereference at ext/testcase.c (function testcase_str2dep_complex) in libsolvext.a in libsolv...",
  "description": "There is a NULL pointer dereference at ext/testcase.c (function testcase_str2dep_complex) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.",
  "published": "2018-12-27T16:00:00Z",
  "severity": "Medium",
  "epss": 0.02079,
  "epssPercentile": 0.81639,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libsolv-perl",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.6.30-1ubuntu0.1~esm1",
      "fix": "libsolv-perl 0.6.30-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libsolv-perl-0.6.30-1ubuntu0.1-esm1",
      "released": "2018-12-27T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libsolv-tools",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.6.30-1ubuntu0.1~esm1",
      "fix": "libsolv-tools 0.6.30-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libsolv-tools-0.6.30-1ubuntu0.1-esm1",
      "released": "2018-12-27T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libsolv0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.6.30-1ubuntu0.1~esm1",
      "fix": "libsolv0 0.6.30-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libsolv0-0.6.30-1ubuntu0.1-esm1",
      "released": "2018-12-27T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libsolvext0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.6.30-1ubuntu0.1~esm1",
      "fix": "libsolvext0 0.6.30-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libsolvext0-0.6.30-1ubuntu0.1-esm1",
      "released": "2018-12-27T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-solv",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.6.30-1ubuntu0.1~esm1",
      "fix": "python-solv 0.6.30-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-solv-0.6.30-1ubuntu0.1-esm1",
      "released": "2018-12-27T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-solv",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.6.30-1ubuntu0.1~esm1",
      "fix": "python3-solv 0.6.30-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python3-solv-0.6.30-1ubuntu0.1-esm1",
      "released": "2018-12-27T16:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}