Red Hat: X.Org X Server Security Advisory (CVE-2026-33999, 34000, 34002, 34003)

Vulnerability Overview Vulnerability IDs: CVE-2026-33999, CVE-2026-34000, CVE-2026-34002, CVE-2026-34003 Vulnerability Types: - CVE-2026-33999: Integer underflow in X.Org X server leading to denial of service (DoS). - CVE-2026-34000: Information disclosure and denial of service in X.Org X server due to out-of-bounds read in XKB geometry handling. - CVE-2026-34002: Information disclosure or denial of service in X.Org X server due to out-of-bounds read in XKB modifier map handling. - CVE-2026-34003: Information disclosure and denial of service in X.Org X server due to out-of-bounds memory access. Impact Scope Affected Systems: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Security Impact: Important Remediation Fix Measures: Red Hat has released security updates to address the above vulnerabilities. Patch Analysis: Red Hat Lightspeed patch analysis recommends identifying and remediating systems affected by this security advisory. Reference Link: View Affected Systems Detailed Information X.Org X server: An open-source implementation of the X Window System, providing the essential low-level functionality required for a fully featured graphical user interface. CVSS Scores: The CVSS base scores for each vulnerability can be viewed on the respective CVE pages. Reference Links CVE-2026-33999 CVE-2026-34000 CVE-2026-34002 CVE-2026-34003 Summary Red Hat has released security updates for X.Org X server to address multiple critical vulnerabilities, including integer underflow, out-of-bounds read, and out-of-bounds memory access issues. These vulnerabilities could lead to security risks such as denial of service and information disclosure. Users are advised to apply the patches promptly to protect system security.

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Red Hat: X.Org X Server Security Advisory (CVE-2026-33999, 34000, 34002, 34003)

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