ubuntu-cve-2025-6052
Vulnerability from osv_ubuntu
Published
2025-06-13 16:15
Modified
2026-04-22 07:53
Summary
Details

A flaw was found in how GLib’s GString manages memory when adding data to strings. If a string is already very large, combining it with more input can cause a hidden overflow in the size calculation. This makes the system think it has enough memory when it doesn’t. As a result, data may be written past the end of the allocated memory, leading to crashes or memory corruption.

Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gir1.2-girepository-3.0",
            "binary_version": "2.80.0-6ubuntu3.6"
          },
          {
            "binary_name": "gir1.2-glib-2.0",
            "binary_version": "2.80.0-6ubuntu3.6"
          },
          {
            "binary_name": "libgirepository-2.0-0",
            "binary_version": "2.80.0-6ubuntu3.6"
          },
          {
            "binary_name": "libglib2.0-0t64",
            "binary_version": "2.80.0-6ubuntu3.6"
          },
          {
            "binary_name": "libglib2.0-bin",
            "binary_version": "2.80.0-6ubuntu3.6"
          },
          {
            "binary_name": "libglib2.0-data",
            "binary_version": "2.80.0-6ubuntu3.6"
          },
          {
            "binary_name": "libglib2.0-dev-bin",
            "binary_version": "2.80.0-6ubuntu3.6"
          },
          {
            "binary_name": "libglib2.0-tests",
            "binary_version": "2.80.0-6ubuntu3.6"
          }
        ],
        "priority_reason": "This is a low-severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "glib2.0",
        "purl": "pkg:deb/ubuntu/glib2.0@2.80.0-6ubuntu3.6?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.80.0-6ubuntu3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.78.0-2",
        "2.78.1-4",
        "2.78.3-1",
        "2.78.3-2",
        "2.79.1-1",
        "2.79.2-1~ubuntu1",
        "2.79.3-3ubuntu5",
        "2.80.0-6ubuntu1",
        "2.80.0-6ubuntu3",
        "2.80.0-6ubuntu3.1",
        "2.80.0-6ubuntu3.2",
        "2.80.0-6ubuntu3.4",
        "2.80.0-6ubuntu3.5"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in how GLib\u2019s GString manages memory when adding data to strings. If a string is already very large, combining it with more input can cause a hidden overflow in the size calculation. This makes the system think it has enough memory when it doesn\u2019t. As a result, data may be written past the end of the allocated memory, leading to crashes or memory corruption.",
  "id": "UBUNTU-CVE-2025-6052",
  "modified": "2026-04-22T07:53:18Z",
  "published": "2025-06-13T16:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-6052"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-6052"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.gnome.org/GNOME/glib/-/merge_requests/4655"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-6052"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7942-1"
    }
  ],
  "related": [
    "USN-7942-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "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": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-6052"
  ]
}



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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

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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.