Red Hat Security Advisory: xorg-x11-server security update
X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Security Fix(es): * xorg: xmayland: Use-after-free in XPresentNotify structure creation (CVE-2025-62229) * xorg: xwayland: Use-after-free in Xkb client resource removal (CVE-2025-62230) * xorg: xmayland: Value overflow in XkbSetCompatMap() (CVE-2025-62231) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The Red Hat security advisory RHSA-2025:19434 addresses three vulnerabilities in the xorg-x11-server package: CVE-2025-62229 (use-after-free in XPresentNotify structure creation in xmayland), CVE-2025-62230 (use-after-free in Xkb client resource removal in xwayland), and CVE-2025-62231 (value overflow in XkbSetCompatMap() in xmayland). These vulnerabilities could potentially lead to memory corruption issues. The advisory provides updated packages for Red Hat Enterprise Linux 8 across multiple architectures and related CodeReady Linux Builder products. No CVSS scores are provided in the advisory, but the overall impact is rated moderate by Red Hat Product Security.
Potential Impact
The vulnerabilities involve use-after-free conditions and a value overflow in components of the X.Org X Window System server, which could lead to memory corruption. Such issues may cause application crashes or potentially allow an attacker to execute arbitrary code or cause denial of service. However, the advisory rates the overall security impact as moderate. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated xorg-x11-server packages for Red Hat Enterprise Linux 8 and related products that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2025:19434 and the referenced article https://access.redhat.com/articles/11258. Since this is an official fix, applying the update is the recommended remediation. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: xorg-x11-server security update
Description
X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Security Fix(es): * xorg: xmayland: Use-after-free in XPresentNotify structure creation (CVE-2025-62229) * xorg: xwayland: Use-after-free in Xkb client resource removal (CVE-2025-62230) * xorg: xmayland: Value overflow in XkbSetCompatMap() (CVE-2025-62231) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
pkg:rpm/redhat/xorg-x11-serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Red Hat security advisory RHSA-2025:19434 addresses three vulnerabilities in the xorg-x11-server package: CVE-2025-62229 (use-after-free in XPresentNotify structure creation in xmayland), CVE-2025-62230 (use-after-free in Xkb client resource removal in xwayland), and CVE-2025-62231 (value overflow in XkbSetCompatMap() in xmayland). These vulnerabilities could potentially lead to memory corruption issues. The advisory provides updated packages for Red Hat Enterprise Linux 8 across multiple architectures and related CodeReady Linux Builder products. No CVSS scores are provided in the advisory, but the overall impact is rated moderate by Red Hat Product Security.
Potential Impact
The vulnerabilities involve use-after-free conditions and a value overflow in components of the X.Org X Window System server, which could lead to memory corruption. Such issues may cause application crashes or potentially allow an attacker to execute arbitrary code or cause denial of service. However, the advisory rates the overall security impact as moderate. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated xorg-x11-server packages for Red Hat Enterprise Linux 8 and related products that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2025:19434 and the referenced article https://access.redhat.com/articles/11258. Since this is an official fix, applying the update is the recommended remediation. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:19434
- Cve Count
- 3
- Additional Cves
- ["CVE-2025-62230","CVE-2025-62231"]
- Cvss Version
- null
Threat ID: 6a3da1df4853345fc182b3f5
Added to database: 06/25/2026, 21:47:11 UTC
Last enriched: 06/25/2026, 22:25:55 UTC
Last updated: 07/01/2026, 18:51:10 UTC
Views: 4
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