{
  "cveId": "CVE-2021-43845",
  "url": "https://patchblox.com/security/cve/CVE-2021-43845",
  "summary": "CVE-2021-43845 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2021-43845, released December 27, 2021. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "ring: PJSIP is a free and open source multimedia communication library",
  "description": "PJSIP is a free and open source multimedia communication library. In version 2.11.1 and prior, if incoming RTCP XR message contain block, the data field is not checked against the received packet size, potentially resulting in an out-of-bound read access. This affects all users that use PJMEDIA and RTCP XR. A malicious actor can send a RTCP XR message with an invalid packet size.",
  "published": "2021-12-27T10:15:00Z",
  "severity": "critical",
  "cvss": 9.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
  "epss": 0.03893,
  "epssPercentile": 0.90314,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "asterisk",
      "release": "Debian 14",
      "fixedVersion": "1:18.12.0~dfsg\u002B~cs6.12.40431413-1",
      "fix": "DEBIAN-CVE-2021-43845",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-43845",
      "released": "2021-12-27T18:15:07Z"
    },
    {
      "platform": "linux",
      "product": "jami",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "20190215.1.f152c98~ds1-1\u002Bdeb10u2build0.20.04.1",
      "fix": "jami 20190215.1.f152c98~ds1-1\u002Bdeb10u2build0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-jami-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1",
      "released": "2023-03-14T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "jami-daemon",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "20190215.1.f152c98~ds1-1\u002Bdeb10u2build0.20.04.1",
      "fix": "jami-daemon 20190215.1.f152c98~ds1-1\u002Bdeb10u2build0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-jami-daemon-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1",
      "released": "2023-03-14T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "ring",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "20230206.0~ds1-1",
      "fix": "DEBIAN-CVE-2021-43845",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-43845",
      "released": "2021-12-27T18:15:07Z"
    },
    {
      "platform": "linux",
      "product": "ring",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "20180228.1.503da2b~ds1-1ubuntu0.1~esm1",
      "fix": "ring 20180228.1.503da2b~ds1-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-ring-20180228.1.503da2b-ds1-1ubuntu0.1-esm1",
      "released": "2023-03-14T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "ring",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "20190215.1.f152c98~ds1-1\u002Bdeb10u2build0.20.04.1",
      "fix": "ring 20190215.1.f152c98~ds1-1\u002Bdeb10u2build0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-ring-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1",
      "released": "2023-03-14T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "ring-daemon",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "20180228.1.503da2b~ds1-1ubuntu0.1~esm1",
      "fix": "ring-daemon 20180228.1.503da2b~ds1-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-ring-daemon-20180228.1.503da2b-ds1-1ubuntu0.1-esm1",
      "released": "2023-03-14T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "ring-daemon",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "20190215.1.f152c98~ds1-1\u002Bdeb10u2build0.20.04.1",
      "fix": "ring-daemon 20190215.1.f152c98~ds1-1\u002Bdeb10u2build0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-ring-daemon-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1",
      "released": "2023-03-14T10:15:00Z"
    }
  ],
  "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"
  }
}