CVE-2022-4283: Use After Free
First published: Thu Dec 08 2022(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| X.org Xorg-server | =1.20.4 | |
| Fedoraproject Fedora | =36 | |
| Fedoraproject Fedora | =37 | |
| Redhat Enterprise Linux | =6.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| Debian Debian Linux | =11.0 | |
| debian/xorg-server | <=2:1.20.4-1+deb10u4 | 2:1.20.4-1+deb10u12 2:1.20.11-1+deb11u6 2:1.20.11-1+deb11u10 2:21.1.7-3+deb12u2 2:21.1.7-3+deb12u4 2:21.1.10-1 |
| debian/xwayland | 2:22.1.9-1 2:23.2.3-1 | |
| =1.20.4 | ||
| =36 | ||
| =37 | ||
| =6.0 | ||
| =7.0 | ||
| =8.0 | ||
| =9.0 | ||
| =11.0 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2022-4283
- https://security-tracker.debian.org/tracker/CVE-2022-46340
- https://security-tracker.debian.org/tracker/CVE-2022-46341
- https://security-tracker.debian.org/tracker/CVE-2022-46342
- https://security-tracker.debian.org/tracker/CVE-2022-46343
- https://security-tracker.debian.org/tracker/CVE-2022-46344
- https://www.cve.org/CVERecord?id=CVE-2022-4283
- https://www.cve.org/CVERecord?id=CVE-2022-46340
- https://www.cve.org/CVERecord?id=CVE-2022-46341
- https://www.cve.org/CVERecord?id=CVE-2022-46342
- https://www.cve.org/CVERecord?id=CVE-2022-46343
- https://www.cve.org/CVERecord?id=CVE-2022-46344
- https://lists.x.org/archives/xorg-announce/2022-December/003302.html
- https://security-tracker.debian.org/tracker/CVE-2022-46283
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026071
- https://access.redhat.com/security/cve/CVE-2022-4283
- https://bugzilla.redhat.com/show_bug.cgi?id=2151761
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/
- https://security.gentoo.org/glsa/202305-30
- https://www.debian.org/security/2022/dsa-5304
- https://gitlab.freedesktop.org/xorg/xserver/commit/ccdd431cd8f1cabae9d744f0514b6533c438908c
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2153127
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2153128
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2153129
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2153130
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2154205
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2154206
- https://access.redhat.com/errata/RHSA-2023:0045
- https://access.redhat.com/errata/RHSA-2023:0046
- https://access.redhat.com/security/cve/cve-2022-4283
- https://access.redhat.com/errata/RHSA-2023:2248
- https://access.redhat.com/errata/RHSA-2023:2249
- https://access.redhat.com/errata/RHSA-2023:2257
- https://access.redhat.com/errata/RHSA-2023:2805
- https://access.redhat.com/errata/RHSA-2023:2806
- https://access.redhat.com/errata/RHSA-2023:2830
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2022-4283.
What is the severity level of CVE-2022-4283?
The severity level of CVE-2022-4283 is high.
Which software is affected by CVE-2022-4283?
The software affected by CVE-2022-4283 includes X.org Xorg-server, Fedoraproject Fedora, Redhat Enterprise Linux, and Debian Debian Linux.
Is there a fix available for CVE-2022-4283?
Yes, there are fixes available for CVE-2022-4283. Please refer to the references for more information.
What is the Common Weakness Enumeration (CWE) ID of CVE-2022-4283?
The Common Weakness Enumeration (CWE) ID of CVE-2022-4283 is 416.
- collector/debian-bugs
- alias/CVE-2022-4283
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- version/fedoraproject fedora/36
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