USN-8697-1 (UBUNTU-CVE-2025-5278)

Vulnerability from osv_ubuntu – Published: 2026-08-31 11:40 – Updated: 2026-08-31 11:40 – Source website
VLAI
Summary
coreutils vulnerabilities
Details

It was discovered that GNU Core Utilities sort had a heap buffer under-read in its begfield() function. A local attacker could possibly use this issue to cause GNU Core Utilities to crash, resulting in a denial of service, or obtain sensitive information. (CVE-2025-5278)

It was discovered that GNU Core Utilities uniq had an out-of-bounds read when the -w option was used with crafted multibyte input. A local attacker could possibly use this issue to cause GNU Core Utilities to crash, resulting in a denial of service, or obtain sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-56391)

References
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{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-5278",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "coreutils",
            "binary_version": "8.32-4.1ubuntu1.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "coreutils",
        "purl": "pkg:deb/ubuntu/coreutils@8.32-4.1ubuntu1.4?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.32-4.1ubuntu1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.32-4ubuntu2",
        "8.32-4ubuntu3",
        "8.32-4.1ubuntu1",
        "8.32-4.1ubuntu1.1",
        "8.32-4.1ubuntu1.2",
        "8.32-4.1ubuntu1.3"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-5278",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "coreutils",
            "binary_version": "9.4-3ubuntu6.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "coreutils",
        "purl": "pkg:deb/ubuntu/coreutils@9.4-3ubuntu6.3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.4-3ubuntu6.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.1-1ubuntu2",
        "9.4-2ubuntu1",
        "9.4-2ubuntu2",
        "9.4-2ubuntu3",
        "9.4-2ubuntu4",
        "9.4-3ubuntu3",
        "9.4-3ubuntu5",
        "9.4-3ubuntu6",
        "9.4-3ubuntu6.1",
        "9.4-3ubuntu6.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-5278",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-56391",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gnu-coreutils",
            "binary_version": "9.7-3ubuntu2.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "coreutils",
        "purl": "pkg:deb/ubuntu/coreutils@9.7-3ubuntu2.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.7-3ubuntu2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.5-1ubuntu4",
        "9.7-3ubuntu1",
        "9.7-3ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that GNU Core Utilities sort had a heap buffer under-read\nin its begfield() function. A local attacker could possibly use this issue\nto cause GNU Core Utilities to crash, resulting in a denial of service, or\nobtain sensitive information. (CVE-2025-5278)\n\nIt was discovered that GNU Core Utilities uniq had an out-of-bounds read\nwhen the -w option was used with crafted multibyte input. A local attacker\ncould possibly use this issue to cause GNU Core Utilities to crash,\nresulting in a denial of service, or obtain sensitive information. This\nissue only affected Ubuntu 26.04 LTS. (CVE-2026-56391)",
  "id": "USN-8697-1",
  "modified": "2026-08-31T11:40:50Z",
  "published": "2026-08-31T11:40:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8697-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-5278"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-56391"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "coreutils vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2025-5278",
    "UBUNTU-CVE-2026-56391"
  ]
}



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