usn-7752-1
Vulnerability from osv_ubuntu
Published
2025-09-16 13:41
Modified
2026-04-22 07:37
Summary
libyang2 vulnerabilities
Details

It was discovered that libyang incorrectly handled certain memory operations when parsing YANG strings. An attacker could possibly use this issue to cause libyang to crash, resulting in a denial of service.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-26916",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-26917",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "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"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libyang-tools",
            "binary_version": "2.1.30-2.1ubuntu0.1"
          },
          {
            "binary_name": "libyang2-tools",
            "binary_version": "2.1.30-2.1ubuntu0.1"
          },
          {
            "binary_name": "libyang2t64",
            "binary_version": "2.1.30-2.1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libyang2",
        "purl": "pkg:deb/ubuntu/libyang2@2.1.30-2.1ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.30-2.1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1.30-2",
        "2.1.30-2.1",
        "2.1.30-2.1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that libyang incorrectly handled certain memory\noperations when parsing YANG strings. An attacker could possibly use this\nissue to cause libyang to crash, resulting in a denial of service.",
  "id": "USN-7752-1",
  "modified": "2026-04-22T07:37:23Z",
  "published": "2025-09-16T13:41:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7752-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-26916"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-26917"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libyang2 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-26916",
    "UBUNTU-CVE-2023-26917"
  ]
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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