{
  "site": "https://pwn.watch",
  "generatedAt": "2026-10-22T20:45:43.249Z",
  "tag": {
    "id": "glibc",
    "label": "glibc",
    "isStack": false,
    "url": "https://pwn.watch/t/glibc",
    "feed": "https://pwn.watch/t/glibc/feed.xml"
  },
  "counts": {
    "incidents": 1,
    "live": 0,
    "notFullyPatched": 0,
    "patched": 1
  },
  "incidents": [
    {
      "slug": "glibc-looney-tunables-cve-2023-4911",
      "title": "Looney Tunables: glibc ld.so local root on most Linux distros (CVE-2023-4911)",
      "url": "https://pwn.watch/i/glibc-looney-tunables-cve-2023-4911",
      "json": "https://pwn.watch/i/glibc-looney-tunables-cve-2023-4911.json",
      "status": "closed",
      "severity": "high",
      "patchStatus": "patched",
      "product": "GNU C Library (glibc) ld.so",
      "tags": [
        "linux",
        "glibc",
        "privilege-escalation",
        "kinsing",
        "cisa-kev"
      ],
      "cveIds": [
        "CVE-2023-4911"
      ],
      "affectedVersions": [
        "glibc 2.34 and later before distro fixes (per Qualys)"
      ],
      "fixedVersions": [
        "See your distribution's advisory"
      ],
      "startedAt": "2023-10-03",
      "closedAt": "2023-11-21",
      "updatedAt": "2023-11-21",
      "summary": "A buffer overflow in glibc's dynamic loader, triggered through the GLIBC_TUNABLES environment variable, gave local users root through SUID binaries on default installs of Fedora, Ubuntu and Debian. Cloud attackers such as Kinsing were soon using it.",
      "xPost": null
    }
  ],
  "posts": [],
  "changes": [
    {
      "incident": "glibc-looney-tunables-cve-2023-4911",
      "incidentTitle": "Looney Tunables: glibc ld.so local root on most Linux distros (CVE-2023-4911)",
      "severity": "high",
      "status": "closed",
      "patchStatus": "patched",
      "date": "2023-11-21",
      "title": "CISA adds CVE-2023-4911 to the KEV catalog",
      "body": null,
      "sourceUrl": null,
      "url": "https://pwn.watch/i/glibc-looney-tunables-cve-2023-4911"
    },
    {
      "incident": "glibc-looney-tunables-cve-2023-4911",
      "incidentTitle": "Looney Tunables: glibc ld.so local root on most Linux distros (CVE-2023-4911)",
      "severity": "high",
      "status": "closed",
      "patchStatus": "patched",
      "date": "2023-10-03",
      "title": "Qualys discloses Looney Tunables; distros ship patched glibc",
      "body": null,
      "sourceUrl": "https://blog.qualys.com/vulnerabilities-threat-research/2023/10/03/cve-2023-4911-looney-tunables-local-privilege-escalation-in-the-glibcs-ld-so",
      "url": "https://pwn.watch/i/glibc-looney-tunables-cve-2023-4911"
    }
  ]
}