{
  "id": "CVE-2023-4911",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2023-10-03T18:15:10.463",
  "lastModified": "2023-10-03T23:55:59.983",
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "secalert@redhat.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ]
  },
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2023/10/03/2",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2023/10/03/3",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2023-4911",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2238352",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.debian.org/security/2023/dsa-5514",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.qualys.com/cve-2023-4911/",
      "source": "secalert@redhat.com"
    }
  ]
}