CVE-2021-4009 (GCVE-0-2021-4009)

Vulnerability from cvelistv5 – Published: 2021-12-17 00:00 – Updated: 2024-08-03 17:16
VLAI
Summary
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcXFixesCreatePointerBarrier function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a xorg-x11-server Affected: xorg-x11-server 21.1.2, xorg-x11-server 1.20.14
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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T15:54:01+00:00",
      "cve": "CVE-2021-4009",
      "id": "CVE-2021-4009",
      "initial_release_date": "2021-12-14T12:00:00+00:00",
      "product_status:fixed": "425",
      "product_status:known_affected": "9",
      "product_status:known_not_affected": "12",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "xorg-x11-server: SProcXFixesCreatePointerBarrier out-of-bounds access",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-4009.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-07-26T00:12:45Z",
      "cve": "CVE-2021-4009",
      "id": "CVE-2021-4009",
      "initial_release_date": "2023-02-15T03:48:12Z",
      "product_status:known_affected": "395",
      "product_status:known_not_affected": "14",
      "product_status:recommended": "291",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-4009",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-4009.json",
      "version": "41"
    }
  }
}