USN-6723-1 (UBUNTU-CVE-2023-50387)

Vulnerability from osv_ubuntu – Published: 2024-04-09 12:07 – Updated: 2026-06-29 10:53 – Source website
VLAI
Summary
bind9 vulnerabilities
Details

Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Bind icorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. (CVE-2023-50387)

It was discovered that Bind incorrectly handled preparing an NSEC3 closest encloser proof. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. (CVE-2023-50868)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
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              "severity": [
                {
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                  "type": "CVSS_V3"
                },
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                }
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                {
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                },
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              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
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        }
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        "1:9.11.3+dfsg-1ubuntu1.19+esm2"
      ]
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  ],
  "aliases": [],
  "details": "Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered\nthat Bind icorrectly handled validating DNSSEC messages. A remote attacker\ncould possibly use this issue to cause Bind to consume resources, leading\nto a denial of service. (CVE-2023-50387)\n\nIt was discovered that Bind incorrectly handled preparing an NSEC3 closest\nencloser proof. A remote attacker could possibly use this issue to cause\nBind to consume resources, leading to a denial of service. (CVE-2023-50868)\n",
  "id": "USN-6723-1",
  "modified": "2026-06-29T10:53:08Z",
  "published": "2024-04-09T12:07:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6723-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-50387"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-50868"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "bind9 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-50387",
    "UBUNTU-CVE-2023-50868"
  ]
}



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