CVE-2018-1061 affecting package python-py 1.11.0-1

{
  "id": "4bd082c50346aa3d6794a053242141ea06a683c23909f6d5e48b288f2511877f",
  "url": "https://osv.dev/vulnerability/AZL-109626",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-1061 affecting package python-py 1.11.0-1",
    "summary": "python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.",
    "evidence": "osv:AZL-109626",
    "products": [
      {
        "name": {
          "value": "python-py",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "AZL-109626",
      "aliases": [
        "AZL-109626"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "1.11.0-1"
                }
              ]
            }
          ],
          "package": {
            "name": "python-py",
            "purl": "pkg:rpm/azure-linux/python-py",
            "ecosystem": "Azure Linux:3"
          },
          "database_specific": {
            "source": "https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-109626.json"
          }
        }
      ],
      "modified": "2026-10-27T05:36:16Z",
      "provider": "osv",
      "upstream": [
        "CVE-2018-1061"
      ],
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2018-1061"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2018-1061",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 460498,
  "published_at": "2018-06-19T12:29:00+00:00"
}