usn-8005-1
Vulnerability from osv_ubuntu
Published
2026-02-03 05:15
Modified
2026-06-25 10:47
Summary
glibc vulnerabilities
Details

Vitaly Simonovich discovered that the GNU C Library did not properly initialize the input when WRDE_REUSE is used. An attacker could possibly use this issue to cause applications to crash, leading to a denial of service. (CVE-2025-15281)

Anastasia Belova discovered that the GNU C Library incorrectly handled the regcomp function when memory allocation failures occured. An attacker could possibly use this issue to cause applications to crash, leading to a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2025-8058)

Igor Morgenstern discovered that the GNU C Library incorrectly handled the memalign function when doing memory allocation. An attacker could possibly use this issue to cause applications to crash, leading to a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2026-0861)

Igor Morgenstern discovered that the GNU C Library incorrectly handled certain DNS backend when queries for a zero-valued network. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. (CVE-2026-0915)

References
To clipboard 

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            "binary_name": "libc-bin",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc-dev-bin",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc-devtools",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc6",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc6-amd64",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc6-dev-amd64",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc6-dev-i386",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc6-dev-s390",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc6-dev-x32",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc6-i386",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc6-s390",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "libc6-x32",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "locales",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "locales-all",
            "binary_version": "2.39-0ubuntu8.7"
          },
          {
            "binary_name": "nscd",
            "binary_version": "2.39-0ubuntu8.7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "glibc",
        "purl": "pkg:deb/ubuntu/glibc@2.39-0ubuntu8.7?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.39-0ubuntu8.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.38-1ubuntu6",
        "2.38-3ubuntu1",
        "2.39-0ubuntu1",
        "2.39-0ubuntu2",
        "2.39-0ubuntu6",
        "2.39-0ubuntu8",
        "2.39-0ubuntu8.1",
        "2.39-0ubuntu8.2",
        "2.39-0ubuntu8.3",
        "2.39-0ubuntu8.4",
        "2.39-0ubuntu8.5",
        "2.39-0ubuntu8.6"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-15281",
              "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": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-0861",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-0915",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "glibc-source",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc-bin",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc-dev-bin",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc-devtools",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc6",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc6-amd64",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc6-dev-amd64",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc6-dev-i386",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc6-dev-x32",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc6-i386",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "libc6-x32",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "locales",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "locales-all",
            "binary_version": "2.42-0ubuntu3.1"
          },
          {
            "binary_name": "nscd",
            "binary_version": "2.42-0ubuntu3.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "glibc",
        "purl": "pkg:deb/ubuntu/glibc@2.42-0ubuntu3.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.42-0ubuntu3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.41-6ubuntu1",
        "2.41-6ubuntu2",
        "2.41-9ubuntu1",
        "2.42-0ubuntu1",
        "2.42-0ubuntu3"
      ]
    }
  ],
  "aliases": [],
  "details": "Vitaly Simonovich discovered that the GNU C Library did not properly\ninitialize the input when WRDE_REUSE is used. An attacker could possibly\nuse this issue to cause applications to crash, leading to a denial of\nservice. (CVE-2025-15281)\n\nAnastasia Belova discovered that the GNU C Library incorrectly handled\nthe regcomp function when memory allocation failures occured. An attacker\ncould possibly use this issue to cause applications to crash, leading to\na denial of service, or possibly execute arbitrary code. This issue only\naffected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.\n(CVE-2025-8058)\n\nIgor Morgenstern discovered that the GNU C Library incorrectly handled\nthe memalign function when doing memory allocation. An attacker could\npossibly use this issue to cause applications to crash, leading to a\ndenial of service, or possibly execute arbitrary code. This issue only\naffected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu\n25.10. (CVE-2026-0861)\n\nIgor Morgenstern discovered that the GNU C Library incorrectly handled\ncertain DNS backend when queries for a zero-valued network. An attacker\ncould possibly use this issue to cause a denial of service or obtain\nsensitive information. (CVE-2026-0915)",
  "id": "USN-8005-1",
  "modified": "2026-06-25T10:47:03Z",
  "published": "2026-02-03T05:15:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8005-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-8058"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-15281"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-0861"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-0915"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "glibc vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2025-8058",
    "UBUNTU-CVE-2025-15281",
    "UBUNTU-CVE-2026-0861",
    "UBUNTU-CVE-2026-0915"
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.