ubuntu-cve-2026-57918
Vulnerability from osv_ubuntu
Published
2026-06-26 11:16
Modified
2026-06-26 11:16
Summary
Details

libnfs through 6.0.2 before 935b8db has an xid integer underflow in READ_IOVEC in rpc_read_from_socket in lib/socket.c during a connection to a crafted NFS server, when the expected pdu size exceeds the absolute pdu size from the xid/record-marker.

Severity
7.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnfs8",
            "binary_version": "1.9.8-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libnfs",
        "purl": "pkg:deb/ubuntu/libnfs@1.9.8-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9.7-2",
        "1.9.8-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnfs11",
            "binary_version": "2.0.0-1~exp1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libnfs",
        "purl": "pkg:deb/ubuntu/libnfs@2.0.0-1~exp1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11.0-2",
        "1.11.0-3",
        "2.0.0-1~exp1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnfs-utils",
            "binary_version": "4.0.0-1"
          },
          {
            "binary_name": "libnfs13",
            "binary_version": "4.0.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libnfs",
        "purl": "pkg:deb/ubuntu/libnfs@4.0.0-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.0-2ubuntu1",
        "4.0.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnfs-utils",
            "binary_version": "4.0.0-1ubuntu0.1"
          },
          {
            "binary_name": "libnfs13",
            "binary_version": "4.0.0-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libnfs",
        "purl": "pkg:deb/ubuntu/libnfs@4.0.0-1ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.0.0-1",
        "4.0.0-1build1",
        "4.0.0-1build2",
        "4.0.0-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnfs-utils",
            "binary_version": "5.0.2-1ubuntu0.24.04.1"
          },
          {
            "binary_name": "libnfs14",
            "binary_version": "5.0.2-1ubuntu0.24.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libnfs",
        "purl": "pkg:deb/ubuntu/libnfs@5.0.2-1ubuntu0.24.04.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.0.0-1build2",
        "5.0.2-1",
        "5.0.2-1build1",
        "5.0.2-1ubuntu0.24.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnfs-utils",
            "binary_version": "5.0.2-1ubuntu0.25.10.1"
          },
          {
            "binary_name": "libnfs14",
            "binary_version": "5.0.2-1ubuntu0.25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libnfs",
        "purl": "pkg:deb/ubuntu/libnfs@5.0.2-1ubuntu0.25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.0.2-1build1",
        "5.0.2-1ubuntu0.25.10.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnfs-utils",
            "binary_version": "5.0.2-1ubuntu1.1"
          },
          {
            "binary_name": "libnfs14",
            "binary_version": "5.0.2-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libnfs",
        "purl": "pkg:deb/ubuntu/libnfs@5.0.2-1ubuntu1.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.0.2-1build1",
        "5.0.2-1build2",
        "5.0.2-1ubuntu1",
        "5.0.2-1ubuntu1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "libnfs through 6.0.2 before 935b8db has an xid integer underflow in READ_IOVEC in rpc_read_from_socket in lib/socket.c during a connection to a crafted NFS server, when the expected pdu size exceeds the absolute pdu size from the xid/record-marker.",
  "id": "UBUNTU-CVE-2026-57918",
  "modified": "2026-06-26T11:16:00Z",
  "published": "2026-06-26T11:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-57918"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-57918"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sahlberg/libnfs/commit/935b8db712b3c6649bc57ddc276526c4a31680de"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-57918"
  ],
  "withdrawn": "2026-06-30T20:45:48Z"
}



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