ubuntu-cve-2025-62230
Vulnerability from osv_ubuntu
Published
2025-10-28 00:00
Modified
2026-05-20 15:22
Summary
Details

A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.

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

{
  "affected": [
    {
      "ecosystem_specific": {
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          {
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          },
          {
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          },
          {
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          },
          {
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          },
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          },
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        ]
      },
      "package": {
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      },
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      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "xorg-server",
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    },
    {
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        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "xwayland",
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          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:23.2.0-1",
        "2:23.2.0-1ubuntu0.1",
        "2:23.2.3-1",
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    {
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        "availability": "No subscription required",
        "binaries": [
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      "package": {
        "ecosystem": "Ubuntu:25.10",
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      "versions": [
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        "2:24.1.6-1ubuntu1"
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    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
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        "purl": "pkg:deb/ubuntu/xorg-server@2:21.1.21-1ubuntu1?arch=source\u0026distro=resolute"
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        "2:21.1.18-1ubuntu1"
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    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "xwayland",
            "binary_version": "2:24.1.9-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "xwayland",
        "purl": "pkg:deb/ubuntu/xwayland@2:24.1.9-1?arch=source\u0026distro=resolute"
      },
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          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:24.1.6-1ubuntu1",
        "2:24.1.8-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was discovered in the X.Org X server\u2019s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.",
  "id": "UBUNTU-CVE-2025-62230",
  "modified": "2026-05-20T15:22:57Z",
  "published": "2025-10-28T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-62230"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-62230"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7846-1"
    }
  ],
  "related": [
    "USN-7846-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-62230"
  ]
}



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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.