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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-22916

An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafted file. NOTE: the vendor disputes the claims of "endless output" and "denial of service" because decompression of the 17,486 bytes always results in 114,881,179 bytes, which is often a reasonable size increase.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-22916
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 11:05 UTC · Revision 1

Source evidence

CVE-2020-22916

core-osv · Original source

Published 22 Aug 2023, 19:16 UTC

An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafted file. NOTE: the vendor disputes the claims of "endless output" and "denial of service" because decompression of the 17,486 bytes always results in 114,881,179 bytes, which is often a reasonable size increase.

osv:CVE-2020-22916
Complete source record
{
  "id": "741db53e12e2bee271424a8d2e610fdb8f6a8863964306985004fe7f978470b4",
  "url": "https://osv.dev/vulnerability/CVE-2020-22916",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-22916",
    "summary": "An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafted file. NOTE: the vendor disputes the claims of \"endless output\" and \"denial of service\" because decompression of the 17,486 bytes always results in 114,881,179 bytes, which is often a reasonable size increase.",
    "evidence": "osv:CVE-2020-22916",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-22916",
      "aliases": [
        "CVE-2020-22916"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tukaani-project/xz",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2327a461e1afce862c22269b80d3517801103c1b"
                },
                {
                  "last_affected": "2327a461e1afce862c22269b80d3517801103c1b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:tukaani:xz:5.2.5:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.2.5"
                      },
                      {
                        "last_affected": "5.2.5"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.2.5",
            "v5.2.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-22916.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:48.818956861Z",
      "provider": "osv",
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-22916",
        "https://tukaani.org/xz/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2234987",
        "https://bugzilla.suse.com/show_bug.cgi?id=1214590",
        "https://github.com/tukaani-project/xz/issues/61",
        "https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-22916",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383848,
  "published_at": "2023-08-22T19:16:19.407+00:00"
}