{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.opencastproject:opencast-common"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.opencastproject:opencast-common"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0"
            },
            {
              "fixed": "10.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2021-12-14T15:22:20Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nOpencast uses an Apache Log4j2 version which, combined with older JDK versions, can be used for remote code execution attacks which have been found to be actively exploited.\n\nApache Log4j2 \u003c=2.14.1 JNDI features is not sufficiently protected. An attacker who can control log messages or log message parameters can execute arbitrary code when message lookup substitution is enabled.\n\n### Who is affected\n\n- Opencast before 9.10 or 10.6 are affected\n    - Log4j version: all 2.x versions before 2.15.0 are affected\n\n### Patches\n\nThe issue has been fixed in Opencast 9.10 and 10.6.\n\n### Workarounds\n\nThe vulnerability can be mitigated by setting system property `log4j2.formatMsgNoLookups` to `true`.\n\n### References\n\n- [Opencast pull request mitigating the vulnerability](https://github.com/opencast/opencast/pull/3253)\n- [CVE-2021-44228 Detail](https://nvd.nist.gov/vuln/detail/CVE-2021-44228)\n- [Analysis and Remediation Guidance to the Log4j Zero-Day RCE (CVE-2021-44228) Vulnerability](https://www.veracode.com/blog/security-news/urgent-analysis-and-remediation-guidance-log4j-zero-day-rce-cve-2021-44228)\n- [VE-2021-44228 \u2013 Log4j 2 Vulnerability Analysis](https://www.randori.com/blog/cve-2021-44228/)\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [our issue tracker](https://github.com/opencast/opencast/issues)\n* Email us at [security@opencast.org](mailto:security@opencast.org)\n\n\n### Note about dependencies\n\nThis issue affects many Java applications. Please also verify these are not vulnerable.",
  "id": "GHSA-mf4f-j588-5xm8",
  "modified": "2021-12-14T15:29:17Z",
  "published": "2021-12-14T21:07:14Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/opencast/opencast/security/advisories/GHSA-mf4f-j588-5xm8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44228"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencast/opencast/pull/3253"
    },
    {
      "type": "WEB",
      "url": "https://docs.opencast.org/r/10.x/admin/#changelog/#opencast-106"
    },
    {
      "type": "WEB",
      "url": "https://docs.opencast.org/r/9.x/admin/#changelog/#opencast-910"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/opencast/opencast"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Apache Log4j Remote Code Execution"
}