{
  "schema_version": "1.4.0",
  "id": "GHSA-hrwv-325w-f6ch",
  "modified": "2022-05-24T19:04:51Z",
  "published": "2022-05-24T19:04:51Z",
  "aliases": [
    "CVE-2021-34557"
  ],
  "details": "XScreenSaver 5.45 can be bypassed if the machine has more than ten disconnectable video outputs. A buffer overflow in update_screen_layout() allows an attacker to bypass the standard screen lock authentication mechanism by crashing XScreenSaver. The attacker must physically disconnect many video outputs.",
  "severity": [],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34557"
    },
    {
      "type": "WEB",
      "url": "https://github.com/QubesOS/qubes-issues/issues/6595"
    },
    {
      "type": "WEB",
      "url": "https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-068-2021.txt"
    },
    {
      "type": "WEB",
      "url": "https://github.com/QubesOS/qubes-xscreensaver/blob/master/0001-Fix-updating-outputs-info.patch"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TC4QB7TRS4GS7LDXQQ4PC6J3LVFJYISV"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2021/06/05/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/06/11/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/07/06/2"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "severity": "MODERATE",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-10T16:15:00Z"
  }
}