CVE-2022-4283

A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

• CWE-416
• CWE-416

• https://access.redhat.com/security/cve/CVE-2022-4283Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2151761Issue Tracking, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/Mailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/Mailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/Mailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202305-30
• https://www.debian.org/security/2022/dsa-5304Third Party Advisory
• https://access.redhat.com/security/cve/CVE-2022-4283Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2151761Issue Tracking, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/Mailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/Mailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/Mailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202305-30
• https://www.debian.org/security/2022/dsa-5304Third Party Advisory

Published

Dec 14, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2022-42824A logic issue was addressed with improved state management. …5.5
• CVE-2022-42825This issue was addressed by removing additional entitlements…5.5
• CVE-2022-42826A use after free issue was addressed with improved memory ma…8.8
• CVE-2022-42827An out-of-bounds write issue was addressed with improved bou…7.8
• CVE-2022-42828The issue was addressed with improved memory handling. This …8.8
• CVE-2022-42829A use after free issue was addressed with improved memory ma…6.7
• CVE-2022-42830The issue was addressed with improved memory handling. This …6.7
• CVE-2022-42831A race condition was addressed with improved locking. This i…6.4
• CVE-2022-42832A race condition was addressed with improved locking. This i…6.4
• CVE-2022-42833An out-of-bounds read was addressed with improved input vali…7.8
• CVE-2022-42834An access issue was addressed with improved access restricti…3.3
• CVE-2022-42835Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…