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
This advisory covers three security vulnerabilities in the xorg-x11-server package used in Red Hat Enterprise Linux 9: CVE-2025-62229 is a use-after-free vulnerability in the XPresentNotify structure creation within xmayland; CVE-2025-62230 is a use-after-free vulnerability in the Xkb client resource removal in xwayland; CVE-2025-62231 is a value overflow vulnerability in the XkbSetCompatMap function in xmayland. These vulnerabilities could potentially lead to memory corruption issues. Red Hat has issued updates to fix these vulnerabilities in version 1.20.11-32.el9_7 of the xorg-x11-server package and related components. The advisory rates the security impact as moderate and provides detailed package updates for various architectures and extended support versions.
Potential Impact
The vulnerabilities involve use-after-free conditions and a value overflow, which may lead to memory corruption in the X.Org server components. Such issues can potentially be exploited to cause denial of service or other unintended behavior. However, no known exploits are reported in the wild at this time. The impact is rated moderate by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated xorg-x11-server packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 9 and related CodeReady Linux Builder packages should apply the updates as detailed in Red Hat advisory RHSA-2025:20961. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigation steps are indicated beyond applying the official patches.
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
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers three security vulnerabilities in the xorg-x11-server package used in Red Hat Enterprise Linux 9: CVE-2025-62229 is a use-after-free vulnerability in the XPresentNotify structure creation within xmayland; CVE-2025-62230 is a use-after-free vulnerability in the Xkb client resource removal in xwayland; CVE-2025-62231 is a value overflow vulnerability in the XkbSetCompatMap function in xmayland. These vulnerabilities could potentially lead to memory corruption issues. Red Hat has issued updates to fix these vulnerabilities in version 1.20.11-32.el9_7 of the xorg-x11-server package and related components. The advisory rates the security impact as moderate and provides detailed package updates for various architectures and extended support versions.
Potential Impact
The vulnerabilities involve use-after-free conditions and a value overflow, which may lead to memory corruption in the X.Org server components. Such issues can potentially be exploited to cause denial of service or other unintended behavior. However, no known exploits are reported in the wild at this time. The impact is rated moderate by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated xorg-x11-server packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 9 and related CodeReady Linux Builder packages should apply the updates as detailed in Red Hat advisory RHSA-2025:20961. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigation steps are indicated beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:20961
- Cve Count
- 3
- Additional Cves
- ["CVE-2025-62230","CVE-2025-62231"]
Threat ID: 6a3da1dd4853345fc182a234
Added to database: 06/25/2026, 21:47:09 UTC
Last enriched: 07/12/2026, 10:53:55 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 45
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