Security advisory

{
  "id": "009a852fda63d3655713522e9c7f2bda098e532efbccff6e9f0f6b1f84a31d8c",
  "url": "https://osv.dev/vulnerability/CVE-2020-27844",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-27844",
    "summary": "A flaw was found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0. This flaw allows an attacker to provide crafted input to openjpeg during conversion and encoding, causing an out-of-bounds write. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
    "evidence": "osv:CVE-2020-27844",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-27844",
      "aliases": [
        "CVE-2020-27844"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/uclouvain/openjpeg",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "37ac30ceff6640bbab502388c5e0fa0bff23f505"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.3.1",
            "v2.3.0",
            "v2.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27844.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:43.938107487Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2021/02/msg00011.html",
        "https://security.gentoo.org/glsa/202101-29",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1907521",
        "https://www.oracle.com//security-alerts/cpujul2021.html",
        "https://www.oracle.com/security-alerts/cpuApr2021.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:oracle:outside_in_technology:8.5.5:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:outside_in_technology",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.5.5"
                  },
                  {
                    "last_affected": "8.5.5"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-27844",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435743,
  "published_at": "2021-01-05T18:15:14.147+00:00"
}