{
  "cveId": "CVE-2023-38703",
  "url": "https://patchblox.com/security/cve/CVE-2023-38703",
  "summary": "CVE-2023-38703 is fixed in asterisk on 1 platform by DEBIAN-CVE-2023-38703 (version 1:20.8.1~dfsg\u002B~cs6.14.40431414-1), released October 6, 2023. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "asterisk: PJSIP is a free and open source multimedia communication library written in C with high level API in C, C\u002B\u002B, Java, C#...",
  "description": "PJSIP is a free and open source multimedia communication library written in C with high level API in C, C\u002B\u002B, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (\u0060PJMEDIA_HAS_SRTP\u0060 is set) and use underlying media transport other than UDP. This vulnerability\u2019s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.",
  "published": "2023-10-06T14:15:12Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0159,
  "epssPercentile": 0.75806,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "asterisk",
      "release": "Debian 14",
      "fixedVersion": "1:20.8.1~dfsg\u002B~cs6.14.40431414-1",
      "fix": "DEBIAN-CVE-2023-38703",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-38703",
      "released": "2023-10-06T14:15:12Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}