Security advisory

{
  "id": "4596266d8f8cde1aed0a4d32bda8b219953ade3fb970938eee8cb5cbf5587c41",
  "url": "https://osv.dev/vulnerability/CVE-2018-15120",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-15120",
    "summary": "libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.",
    "evidence": "osv:CVE-2018-15120",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-15120",
      "aliases": [
        "CVE-2018-15120"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gnome/pango",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0940ddc24f7301f09d945ec44360699ce30859c6"
                },
                {
                  "last_affected": "67471cbfe24cd4418e9e97837ac85207f0d974de"
                },
                {
                  "fixed": "71aaeaf020340412b8d012fe23a556c0420eda5f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnome:pango:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.40.8"
                      },
                      {
                        "last_affected": "1.42.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "71aaeaf020340412b8d012fe23a556c0420eda5f"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.42.3",
            "1.42.2",
            "1.42.1",
            "1.42.0",
            "1.41.1",
            "1.41.0",
            "1.40.14",
            "1.40.13",
            "1.40.12",
            "1.40.11",
            "1.40.10",
            "1.40.9",
            "1.40.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-15120.json",
            "vanir_signatures": [
              {
                "id": "CVE-2018-15120-94a7ee29",
                "digest": {
                  "length": 1743,
                  "function_hash": "280634229485122664716075277308058368326"
                },
                "source": "https://github.com/gnome/pango/commit/71aaeaf020340412b8d012fe23a556c0420eda5f",
                "target": {
                  "file": "pango/pango-emoji.c",
                  "function": "_pango_emoji_iter_next"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2018-15120-f82f83a2",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "209976057711671941575069096308863010864",
                    "186327902410307932406473741261747817727",
                    "243903047219189923930036787420386286732",
                    "45389752208727248105783279002597061461"
                  ]
                },
                "source": "https://github.com/gnome/pango/commit/71aaeaf020340412b8d012fe23a556c0420eda5f",
                "target": {
                  "file": "pango/pango-emoji.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:29:26Z"
          }
        }
      ],
      "modified": "2026-10-20T13:29:26.399210951Z",
      "provider": "osv",
      "references": [
        "https://github.com/GNOME/pango/blob/1.42.4/NEWS",
        "https://i.redd.it/v7p4n2ptu0s11.jpg",
        "https://security.gentoo.org/glsa/201811-07",
        "https://usn.ubuntu.com/3750-1/",
        "https://www.reddit.com/r/PS4/comments/9o5efg/message_bricking_console_megathread/",
        "https://github.com/GNOME/pango/commit/71aaeaf020340412b8d012fe23a556c0420eda5f",
        "https://mail.gnome.org/archives/distributor-list/2018-August/msg00001.html",
        "https://www.exploit-db.com/exploits/45263",
        "https://www.exploit-db.com/exploits/45263/",
        "https://www.ign.com/articles/2018/10/16/ps4s-are-reportedly-being-bricked-and-sony-is-working-on-a-fix"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-15120",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387738,
  "published_at": "2018-08-24T19:29:01.657+00:00"
}